# Mechanical pencil lead refill Faber-Castell Polymer 0.5 mm HB (mpn 521500 FC)

**URL:** https://aio.lv/en/product--faber-castell-521500-fc--11389047
**Data updated:** 2026-03-07 20:02 (EET)
**Category:** Stationery Accessories
**Manufacturer:** Faber-Castell
**Manufacturer code:** 521500 FC
**EAN:** 7891360472629
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--faber-castell-521500-fc--11389047

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 05.08.2026 | free |
| Pickup points | 10.08.2026 | 1.79 EUR |
| Courier delivery to door | 10.08.2026 | 4.99 EUR |

## Summary description

Faber-Castell Polymer 0.5 mm HB mechanical pencil lead refill (mpn 521500 FC) provides consistent HB-grade graphite in a 0.5 mm diameter for writing and technical drawing. Polymer formulation offers smooth lines and reduced breakage compared with standard leads. Suitable for mechanical pencils requiring 0.5 mm leads; ideal for note-taking, sketching, drafting and everyday use.

## Long description

Faber-Castell Polymer 0.5 mm HB mechanical pencil lead refill supplies consistent HB-grade graphite in a 0.5 mm diameter for everyday writing, sketching and technical drawing. The polymer-enhanced composition provides smooth, even lines with greater resistance to breakage than conventional leads, making it suitable for a wide range of mechanical pencils that accept 0.5 mm refills. The product is designed to deliver uniform darkness and reliable performance during note-taking, drafting and general-purpose use.
Advantages
The polymer formulation reduces lead crumbling and breakage while maintaining consistent HB darkness for legible writing and clear sketches. The 0.5 mm diameter strikes a balance between fine detail and durability, producing precise lines for technical tasks and comfortable strokes for everyday handwriting. Compatibility with standard 0.5 mm mechanical pencils ensures easy replacement and steady feed during prolonged use.
Suitable for
Everyday note-taking and schoolwork
Sketching and preliminary drawings
Technical drawing and drafting where fine lines are required
Office use for annotations, forms and documents
Key specifications
Core diameter: 0.5 mm
Hardness/grade: HB (medium hardness)
Material: polymer-enhanced graphite
Intended use: mechanical pencils requiring 0.5 mm leads
How to use
Open the refill container and insert the required number of leads into the mechanical pencil according to the pencil manufacturer’s instructions. Advance the tip gradually while writing; for technical drawing use a steady hand and light pressure to preserve tip integrity. Replace leads before they become too short to feed reliably, and store remaining refills in the original container to protect them from dust and breakage.
Usage recommendations
For best results, use in mechanical pencils specified for 0.5 mm leads and apply moderate pressure while writing or drawing. If sharper lines are needed, use a light touch; for darker marks, increase pressure slightly but avoid excessive force to prevent breakage. Store refills in a dry place and handle gently to maintain lead quality.

## FAQ

### How much does the Faber-Castell Polymer 0.5 mm HB lead refill cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 05.08.2026 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 Faber-Castell 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 Faber-Castell 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/11389047/66030427_large.webp