Set of 4 swivel casters - 30 mm - 40 kg - Heavy duty - For furniture, pallet furniture

High-Quality Material: The wheel part of this lightweight polypropylene wheel is made of high-quality, environmentally friendly, and wear-resistant polypropylene. The support surface is galvanized iron, which effectively prevents corrosion and rust, is not easily worn or torn, and can withstand strong impacts to improve the wheel's lifespan. 【Stable and Firm】 The top of this launcher uses a flat design, which is also more stable. We use rivets to connect the wheel and the clamp, making it sturdy and preventing it from easily falling off. 【Steel Ball Bearings】These swivel casters have a sufficient number of steel balls inside. The steel balls have uniform hardness, good wear resistance, more flexible and smoother steering, 360° rotation, are environmentally friendly and quiet, have a good load capacity, and are not easy to rust. Riveted Connection: The top of this caster uses a flat design, which is more stable. We use rivets to connect the wheel and the bracket, making it more solid and preventing it from easily falling off. Free Choice: We have four sizes to choose from. You can choose based on the universal wheel size or maximum load capacity. Each wheel requires 4 screws for mounting.