# Invisible Ink Science Kit RANOK 157191 — invisible writing and reveal set for experiments

**URL:** https://aio.lv/en/product--ranok-157191--12365949
**Data updated:** 2026-05-11 18:23 (EEST)
**Category:** Educational Toys & Puzzles
**Manufacturer:** RANOK
**Manufacturer code:** 157191
**EAN:** 4823076100841
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ranok-157191--12365949

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

RANOK Invisible Ink kit (model 157191) is an educational science set for creating secret messages using invisible ink and revealing them with provided reagents or light. Designed for hands-on learning, it demonstrates chemical or optical detection principles and is suitable for classroom activities, home experiments, and STEM workshops for children and beginners.

## Long description

The RANOK Invisible Ink Science Kit is an educational set designed to introduce children and beginners to the fascinating world of chemistry and optical science through the creation of secret messages. This kit provides all the necessary components to write hidden notes that remain invisible to the naked eye until they are revealed using specific reagents or light sources. It serves as an engaging tool for hands-on learning, allowing users to explore the principles of chemical reactions and light detection in a controlled and safe environment.
Advantages
This science kit offers a practical approach to learning, making complex scientific concepts accessible and entertaining for young minds. By engaging in these experiments, users develop critical thinking and observation skills while gaining a fundamental understanding of how invisible ink functions. The materials included are curated to ensure a smooth experimental process, fostering curiosity and encouraging an interest in STEM subjects through interactive play.
Suitable for
Educational classroom activities
Home science experiments
STEM workshops for children
Beginner-level science projects
This kit may not be suitable for individuals looking for professional-grade forensic equipment or permanent marking solutions, as it is designed specifically for educational and entertainment purposes. It is also not recommended for children under the age of three due to small parts that may pose a choking hazard.
Key specifications
Educational science kit for invisible writing
Includes reagents for revealing hidden messages
Designed for hands-on chemical and optical experiments
Suitable for children and beginners
How to use
To use the kit, follow the instructions provided in the manual to prepare your invisible ink solution. Write your secret message on a piece of paper and allow it to dry completely until it is no longer visible. Once the message is dry, use the included reagents or the specified light source to reveal the hidden text. Always ensure you are working on a clean, flat surface and follow the safety guidelines provided in the kit to achieve the best results.
What to consider before purchase
Check the recommended age range for the user
Ensure adult supervision is available for younger children
Verify that the workspace is suitable for handling science experiment materials
Usage recommendations: Always perform experiments in a well-lit area and ensure that all materials are stored properly after use to maintain their effectiveness for future projects.

## FAQ

### How much does the RANOK Invisible Ink Kit 157191 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 06.07.2026 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 RANOK 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 RANOK 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/12365949/68419327_large.webp