# Office chair caster wheels Topstar 6990 — set for hard floors, single-wheel, nylon, 50 mm

**URL:** https://aio.lv/en/product--topstar-6990--3692963
**Data updated:** 2026-01-22 17:55 (EET)
**Category:** Furniture Accessories
**Manufacturer:** Topstar
**Manufacturer code:** 6990
**EAN:** 4014296224886
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--topstar-6990--3692963

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Set of Topstar 6990 office chair caster wheels designed for hard floors. Single-wheel nylon construction with 50 mm diameter provides smooth, non-marking movement on wood, laminate and tile. Easy to install replacement casters compatible with most office chairs; reduce floor damage and improve chair mobility for home or workplace use.

## Long description

Topstar 6990 set of caster wheels designed for use on hard floors such as wood, laminate, tile and stone. The set contains five single-wheel nylon casters with a 50 mm wheel diameter and an 11 mm stem, intended as replacement wheels for compatible office chair bases including Open Base, Open Art, New Workart and Sitness 50 models. These casters provide smooth, non-marking rolling and are suitable for home and office chairs on hard surfaces.
Advantages
The nylon single-wheel design offers low rolling resistance and reduces the risk of scratches or marks on hard floor coverings. The 11 mm stem and standard mounting size make installation straightforward on compatible chair bases. A set of five wheels ensures a complete replacement for most five-star chair bases and restores chair mobility on hard floors.
Suitable for
Replacement of worn caster wheels on office chairs used on hard floors
Wood and parquet floors
Laminate and vinyl surfaces
Ceramic tile and natural stone floors
Key specifications
Wheel type: single-wheel, nylon
Wheel diameter: 50 mm
Stem diameter: 11 mm
Number of wheels in set: 5
Intended surface: hard floors (wood, parquet, laminate, tile, stone)
How to use
Remove the old casters by pulling them out of the chair base or by releasing any locking clip, then push the new 11 mm stem casters firmly into the socket until they click into place. Check that each wheel is securely seated and that the chair rolls evenly across the floor. If required, clean the floor surface of grit or debris before use to prevent abrasion.
Usage recommendations
For prolonged floor protection, use with a suitable chair mat on delicate surfaces and periodically inspect wheels for wear or trapped debris. Ensure compatibility with your chair model — these casters are specified for Open Base, Open Art, New Workart and Sitness 50 series.

## FAQ

### How much does the Topstar 6990 chair caster wheels for hard floors cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 27.07.2026 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. 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 Topstar 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 Topstar 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/3692963/47499964_large.webp