# Triangle ruler Proline 21330 — technical drawing triangle, 1 pc

**URL:** https://aio.lv/en/product--proline-21330--11777475
**Data updated:** 2026-03-08 22:47 (EET)
**Category:** Measuring tools
**Manufacturer:** Proline
**Manufacturer code:** 21330
**EAN:** 5903755213303
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-21330--11777475

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Proline 21330 is a single-piece drawing triangle designed for technical drawing and measurement tasks. Supplied as one unit, it serves as a guide for straight lines and angle work in drafting, schoolwork or workshop use. Compact and simple, the triangle is intended for precise alignment and basic layout operations.

## Long description

Proline 21330 is a single-piece drawing triangle designed for technical drawing, measurement and layout tasks. The triangle combines a rigid structure with dual-sided metric and inch scales to support precise alignment and straight-line guidance for drafting, classroom assignments and workshop marking. Its compact, one-piece design makes it easy to handle, store and integrate into a drawing kit or toolbox.
Advantages
The rigid construction of this Proline triangle provides stability during use, reducing flex and helping maintain accurate lines and angles. Having both metric and inch scales on opposite sides allows seamless switching between measurement systems without needing additional rulers. The single-piece format minimizes moving parts, improving durability and simplifying maintenance.
Suitable for
Technical drawing and drafting work
School geometry and engineering exercises
Workshop marking and layout
Model making and hobby projects requiring straight edges and angle control
Key specifications
Construction: single-piece rigid triangle for stable alignment
Scales: two-sided measurement markings in metric and inch units
Primary use: guide for straight lines and angle work
Quantity: 1 piece
Suitable for hand drawing, measuring and layout tasks
How to use
Place the Proline drawing triangle on the drawing surface with the appropriate face up for the measurement system you need. Align the triangle edge with your reference points or existing lines, and use a pencil or technical pen along the straight edge to draw precise lines or transfer angles. Apply firm but steady pressure to reduce movement and, when measuring, read values from the nearest scale markings. For repetitive layouts, use the triangle as a stable guide against a straightedge or T-square.
Usage recommendations
Store the triangle flat or in a protective sleeve to avoid edge damage. Clean scale markings gently with a soft cloth to preserve readability. When working on delicate media, place a backing sheet under the work to prevent indentations.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Proline triangle 21330 — drawing triangle cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 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 07.07.2026 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 Proline 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 Proline 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

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