【Universally suitable for 【99% of chairs】 Swivel chair casters are suitable for all chairs. most office chairs as well as computer gaming chairs, office chairs, gaming chairs, executive chairs, swivel chairs, office chairs or desks. There are many brands that are compatible with our office chair casters, such as. B. Herman Miller Steelcase, Aeron, Dxracer, Humanscale Freedom, Lazyboy Serta, Hon, Boss etc. , Handle length: 7/8") 【Quiet】 The hard floor casters are made of high quality steel and are absolutely sturdy. You will hear absolutely no noise when you slide the casters on your hard floor office chair Even if you work or play in the home office at night, you will not disturb anyone because no one can help you. Listen. 【SAFE FOR ALL SURFACES】 Hard floor casters have soft, durable polyurethane edges to protect your floors in the long term. Smooth swivel chairs will not leave scratches, cracks or other damage on your floors. In addition, no scratches or dark or black marks will be