Casters — Twinstar (Set of 4)

The Twinstar Series from Master Manufacturing delivers superior strength and smooth performance for office chairs and commercial seating that demand durability. These 2-3/8" dual-wheel casters are engineered for heavier users, rated up to 120 lbs per caster, making them a reliable upgrade from standard chair casters.

Twinstar casters are available for both carpeted floors (hard wheels) and hard floors/chair mats (soft urethane wheels). The dual-wheel construction offers improved stability and maneuverability while reducing stress on flooring surfaces. Designed with universal grip ring stems, the Twinstar Series fits 99% of metal chair bases.

These casters are ideal for:

• Office chairs (light to heavy use)
• Executive seating
• Call center chairs
• Computer lab seating
• Commercial and industrial environments

If you're looking for stronger, smoother, and longer-lasting mobility—Twinstar delivers.

Features

• Heavy-duty dual-wheel casters
• 120 lb weight rating per caster
• Long-lasting performance for daily use
• Quiet rolling with reduced friction
• Protects flooring from damage
• Professional upgrade over OEM casters
• Step-On Brakes
• Set of 4 wheels
• Multiple finishes to compliment your furniture
• Available with hard (H) or soft (S) wheels
• Multiple stem options to fit nearly any chair:
  • C Stem: 7/16” diameter x 1.3/8” long
  • B Stem: 7/16” diameter x 7/8” long
  • K Stem: 3/8” diameter x 1” long
  • M Stem: 10mm diameter x 7/8” long
  • W Stem: 5/16” diameter x 1.1/12” long
  • J Plate: 2” x 1-3/16”
  • 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
  • Z Stem: 1/4” diameter x 1” long, 20 threads per inch