Locking heavy-duty rated casters roll effortlessly across all types of flooring. The soft rubber wheels provide easy mobility, yet are soft and gentle on wood and tile flooring. Casters easily lock to restrict movement of your chair when stable seating is required. Precision ball bearing suspension ensures years of smooth-rolling reliability. Universal caster stem works on most office swivel chair bases. Upgrade your office chair today with these durable, modern style chair locking casters! Set includes 5 wheels total. 1.1 cm diameter x 2 cm long caster stem to work with most office chair bases. Caster measures 3" in diameter x 7/8" thick. Caster set has 350 lbs. weight capacity. Shipping weight 1-pound for set of 5 wheels. PRICE INCLUDES SHIPPING! IN STOCK!