# Triangle ruler Centrum model 80728 — drafting tool for measuring and drawing angles

**URL:** https://aio.lv/en/product--centrum-80728--4907727
**Data updated:** 2026-04-20 20:03 (EEST)
**Category:** Rulers, Stencils & Compasses
**Manufacturer:** Centrum
**Manufacturer code:** 80728
**EAN:** 4030969807286
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-07 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--centrum-80728--4907727

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Centrum triangle ruler model 80728 is a simple drafting and measuring tool designed for drawing straight lines and measuring angles. Suitable for school, office and technical sketching, it provides a rigid triangular profile to guide pencils and pens for accurate lines and basic geometric constructions. Lightweight and easy to store and carry.

## Long description

The Centrum triangle ruler model 80728 is a compact drafting tool designed for drawing straight lines and measuring common angles. Made with a rigid triangular profile, this instrument helps guide pencils and pens to produce accurate strokes for schoolwork, office tasks and basic technical sketches. Its lightweight construction and slim form make it easy to store in pencil cases or carry in a bag for on-the-go use.
Advantages
The triangle ruler offers stable edge guidance for precise line drawing and angle alignment without flexing during normal use. Its triangular shape provides multiple straight edges and fixed angle references, allowing quick switching between directions. The simple design ensures low maintenance and long usable life under typical classroom and office conditions.
Suitable for
School geometry exercises and technical drawing lessons
Office tasks requiring straight lines or layout sketches
Basic drafting and hobby sketching
Measuring and checking common angles in non-specialized applications
Key specifications
Triangular rigid profile providing multiple straight edges
Lightweight construction for easy handling and portability
Slim form factor suitable for pencil cases and document folders
Suitable for use with pencils and pens for manual drawing
How to use
Place the triangle ruler on the drawing surface with the desired edge aligned to the points you wish to connect. Hold the ruler firmly to prevent shifting, then draw along the chosen edge with a pencil or pen. To measure or construct angles, align one edge with an existing line and use the appropriate adjacent edge as the angle reference. Store the ruler flat or in a pencil case when not in use to avoid warping.
Usage recommendations
For best results, use a sharp pencil or a technical pen with a fine nib and apply even pressure while drawing. Avoid exposing the ruler to high heat or heavy weight to maintain its straight edges. Clean with a soft cloth if debris accumulates along the edges.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.0298 kg |

## FAQ

### How much does the Centrum triangle ruler 80728 cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 54 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 30.06.2026 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 Centrum 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 Centrum 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/4907727/30576725_large.webp