unnotched, calmness rolling and total swivel action all while protecting your floors with these depleted profile rubber casters. Wheel tread is of specially formulated polyurethane rubber to protect hardwood, LVT, laminate, tile, slate, and all remaining erect floor surfaces. Unlike remaining caster wheels, this 4-piece rubber caster wheel set two worldwide attachment options. Whether you need to mount these to a chair with a 5/16 '' stem or to a cabinet using a unfolded big top plate, this adroit pack all the required mounting hardware. Ideal replacement or in immature construction of chairs, tables, racks, storage containers, carts, and more. A set of 4 a moving load capacity of 264 lbs. and a stable load of 308 lbs. for home, office or industrialized use, our wheels carry a 5-year narrow warranty. -LRB- 1-year -RRB-.