Suitable for 8mm Holes: 1 set of 4 hooded casters with a diameter of 50mm and the stem diameter is 8mm, the total length of the casters is 100mm, the length of the rotating stem is 38mm. Plated Brass Material: The antique brass rotating wheel combines elegance and durability, which will bring a different style to your furniture. Heavy Duty: The general load capacity of each ball is 25kg, 4 casters in total with a load capacity of 100kg, suitable for most applications. Quiet PP Material: The furniture wheels are made of high-quality rubber and polypropylene, compared to metal and plastic with a low voice, more suitable for wooden floors without scratches. Widely Uses: Ideal for furniture legs, sofas, coffee tables, office chairs, for all hardwood floors without damage.