Stealtho Office Chair Caster Wheels Replacement Set of 5, Soft Polyurethane Blue Safe Hardwood Floor

U.S. UTILITY PATENT: caster system for moving furniture. We reconsidered mechanical design and engineering. Design is completely free from problems of analog casters, balls falling out, body failure NO CHAIR MATS NEEDED - SAFE FOR ALL FLOORS: Our premium office chair swivel wheels are safe for any kind of the hardwood floor, parquet, laminate, linoleum, tile, carpet. SMOOTH & QUIET BARRIER-FREE ROLLING: High-tech elastic urethane of our office chair wheels makes movements easy and noiseless. This chair castor will glide smoothly and not scratch your hardwood floors NEW STEM DESIGN & HEAVY DUTY ABEC9 BEARINGS: New geometry of our heavy duty casters prevents axial run-out bearing of our chair rubber roller wheels