# Extra Digital Wooden Assembly Kit Excavator STEM Educational Toy

**URL:** https://aio.lv/en/product--extra-digital-nv822928--12425664
**Data updated:** 2026-05-10 03:49 (EEST)
**Category:** Construction Toys
**Manufacturer:** extra digital
**Manufacturer code:** NV822928
**EAN:** 9990000822928
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-08 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--extra-digital-nv822928--12425664

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.06.2026 | free |
| Pickup points | 18.06.2026 | 1.99 EUR |
| Courier delivery to door | 18.06.2026 | 4.99 EUR |

## Summary description

The Extra Digital wooden assembly kit excavator is a STEM educational toy designed to develop engineering skills and logical thinking. This hands-on construction set allows users to build a functional model, providing an engaging way to learn about mechanical principles. Ideal for children and hobbyists, it encourages creativity and fine motor skills through the assembly process.

## Long description

The Extra Digital wooden assembly kit excavator is a STEM educational toy designed to develop engineering skills and logical thinking. This hands-on construction set allows users to build a functional model, providing an engaging way to learn about mechanical principles. The assembled model is operated manually using a water-pressure-powered hydraulic system, helping children understand the basic principles of hydraulics, engineering mechanics, and robotics.
Advantages
This construction kit serves as a toy and an educational tool, transforming complex physics theories into a hands-on learning experience. The model operates entirely without electricity or batteries, as all movement is generated by water pressure. During assembly, children develop fine motor skills and precision, while testing the model reinforces scientific concepts. The structure is made from high-quality, non-toxic, laser-cut wood, ensuring durability and safety. The kit is designed for easy assembly, allowing for independent work or collaborative activities with parents.
Suitable for
Home learning and educational projects
Classroom demonstrations in schools
Developing fine motor skills and logical thinking
STEM-focused hobbyist activities
This kit may not be suitable for children under the age of 3 due to the presence of small parts that pose a choking hazard. It is also not intended for heavy-duty construction tasks, as it is a delicate educational model designed for demonstration and play.
Key specifications
Material: Laser-cut wood, metal, and plastic
Dimensions: 300 x 220 x 185 mm
Weight: 190 g
Control system: 8-syringe hydraulic mechanism
Power source: Manual water pressure
To assemble the excavator, follow the provided manual to connect the wooden parts using the included screws and glue. Once the structure is built, fill the syringe system with water according to the instructions. The four control syringes are connected by flexible tubes to the working syringes on the excavator arm. By pressing or pulling the pistons on the control base, you transfer pressure through the tubes, which causes the working syringes to extend or retract, enabling the arm to lift, lower, bend, or rotate.
What to consider before purchase
Ensure the child is within the recommended age range of 6-8 years and above
Verify that the workspace is suitable for handling water during the filling process
Check that all components are present before beginning assembly
For the best experience, consider using different colored water in the syringes to easily identify which control corresponds to each specific movement of the excavator arm.

## FAQ

### How much does the Extra Digital Wooden Excavator Assembly Kit STEM Toy cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All extra digital products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized extra digital service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12425664/68723459_large.webp