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Five glow green rubber caster wheels with silver stems on white background

Metra WR21240CA-75-NL Accessories - Wheels

SKU CH-D89Z-505C1 MPN WR21240CA-75-NL

Set of five rubber casters with 11 mm × 22 mm stems supports 660 lbs and rolls quietly on hard floors and carpet

  • Key featuresRubber, Stem, 660 lb, Stem Mount, 5, Glow Green
  • Overall height7.1882 L x 10.795 W x 20.2946 H centimeters
  • Overall width7.1882 L x 10.795 W x 20.2946 H centimeters
  • Product colorGray
  • Smooth silent rolling on any floor surface with polyurethane rubber wheels
  • Protects hardwood tile and carpet from scratches without needing a floor mat
  • Heavy duty steel brackets support 660 lbs total capacity for office and gaming chairs
  • Universal 11mm by 22mm stem fits most standard office chairs in minutes
  • Tool free installation with five pre assembled casters ready to push in place

Replacement Wheels for Office Chairs

This set of five caster wheels replaces the originals on most standard office chairs. The 11 mm by 22 mm stem fits the common socket used across many U.S. models. Installation requires no tools; simply pull the old wheels out and press the new ones in. The glow-green rubber tread adds a visible accent while rolling.

Load Capacity and Floor Protection

Each set supports up to 660 lbs distributed across the five wheels, handling heavy occupants and gear without deformation. Soft polyurethane rubber treads prevent scratches on hardwood, tile, laminate and carpet, removing the need for a separate floor mat. Double-steel brackets and reinforced bearings keep the wheels rolling smoothly under sustained weight.

Universal Stem Fit and Limits

The 11 mm diameter by 22 mm length stem matches the dominant office-chair standard, but chairs with proprietary or metric-only sockets will not accept these casters. Stem-mounted designs that use a friction ring, threaded bolt or larger diameter cannot use this set. Buyers should verify their chair's stem dimensions before ordering.

How it compares

Measured against everything we stock in Valve Stem Caps & Wheel Locks, at today’s prices. Recalculated every night.

Price $16.99
Pricier than about 71% of the 760 comparable items (median $7.99).

Specifications

Product
Brand nameMetra
Model nameWR21240CA-75-NL
Product colorGray
Size & build
Overall height7.1882 L x 10.795 W x 20.2946 H centimeters
Overall width7.1882 L x 10.795 W x 20.2946 H centimeters

Questions about this item

Will the 11 mm stem fit the base I already have on my office chair?

The casters use a standard 11 mm diameter × 22 mm stem that fits most office chairs sold in the U.S.; simply pull out the old wheels and push these in.

How can I confirm the casters are rolling silently on my hardwood floor after installation?

After fitting the wheels, sit in the chair and move across the floor — there should be no squeak or drag noise on hardwood, tile, carpet or laminate.

Does the set of 5 Glow Green casters include any extra hardware or do I need a floor mat?

The box contains five pre-assembled caster wheels only; no tools, extra stems or floor mat are required or included.

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