Replacement Office Chair or Stool Bell Glides - High Profile (5 Pack) - S0007 2.5" Overall glide height when installed - similar height to most standard chair casters 2" Bottom Width x 1.30" Top Width x 2" Overall glide height - similar to most chair casters Uses the same mounting stem to attach to chair bases as most chair casters Standard 7/16" x 7/8" (11mm x 22mm) grip ring mounting stem to attach to most standard chair or stool bases - Please measure yours before ordering Black