uvce Bell Glides Replacement Office Chair Swivel Caster Wheels to Fixed Stationary Castors，Adjustable Castor Low Profile Stool with Separate Self Adhesive Felt Pads Black 5pcs Silver

Standard 7/16"" x 7/8"" (11mm x 22mm) grip ring mounting stem to attach to most standard chair or stool bases - Not fit for Ikea chairs. Ikea chair needs 10mm Stem, but this is 11mm. Each caster wheels features a grip ring stem, which enables them to be attached to the base of an office chair without the use of any tools. 2 inches overall glide height when installed，it similar height to most small chair casters. This Stool or office chair bell glides to convert any office or desk chair in stationary. This stool office chair bell glides can convert office chair with casters into a stationary chair without losing the chair height. Heavy duty weight rated 110 lbs. per glide as a set of 5 supports 550 lbs. These glides remain stable across smooth floor surfaces such as wood, tile and laminate while providing more traction than caster wheels do.Provides a safer seat for those who have difficulty getting in