zitriom Office Chair Caster Wheels for All Floors - Set of 5 Silicone Replacements with Universal Fit Standard Stem Diam

? RELIABLE - Especially designed to protect carpet, slate, tile, and other soft floors while keeping smooth and quiet rolling
? HEAVY DUTY AND ULTRA STRONG - Maximum weight rating: 100 lbs. EACH wheel and 500 lbs. as a set of 5
? PRACTICAL AND DURABLE - Made of high quality polyurethane to guarantee excellent performance over time
? UNIVERSAL - Fit most office chair models available, standard stem diameter: 7/16(11mm), stem length: 7/8(22mm)
? USER FRIENDLY - DIY Easy pull and snap installation - 5-year Warranty - Money Back Guarantee