Casters — Gemini (Set of 4)

Master Manufacturing Gemini Heavy-Duty Casters deliver superior strength, smooth performance, and quiet mobility for today’s toughest work environments. Designed for hard floor surfaces—including hardwood, tile, and chair mats—these 3" soft-wheel casters prevent scratches, scuffs, and sliding, while maintaining a stable, controlled roll.

Each caster is weight-rated for 220 lbs per wheel, built from heavy-duty materials for lasting performance. A lock/release toggle brake provides additional safety by preventing unwanted movement when stationary. The Gemini line is ideal for office chairs, industrial seating, and furniture that requires both durability and a premium glide.

Gemini casters are available in several stem and plate styles to fit nearly any chair or base, including Noiseless Stem (R), Standard Grip Ring Stem, and Plate Mount (J) options.

Features

• 3" dual soft-tread wheels for smooth, quiet rolling on hard floors
• Heavy-duty construction rated for 220 lbs per wheel
• Safe toggle brake prevents unwanted movement
• Soft polyurethane tread protects floors and reduces sliding
• Ideal for offices, workshops, labs, and classrooms
• Set of 4 
• Multiple stem options to fit nearly any chair:
  
  • B Stem: 7/16” diameter x 7/8” long
  • R Stem: 7/16” diameter x 7/8” long
  • S Stem: 5/16” diameter x 3/4” long, 18 threads per inch
  • T Stem: 3/8” diameter x 3/4” long, 18 threads per inch
  • J Plate: 2” x 1-3/16”