【Product Name】Screw-in Casters 【Colors】Silver, Black 【Size】50mm diameter 【Weight】300g 【Load Capacity】45 kg 【Quantity】Set of 4 ●M8x15mm Threaded Stem; Package Contents: 4 x Screw-in Casters (50mm diameter), 1 x Simple Wrench. ※The screw size is metric M8 standard thread (maximum diameter of the screw is 8 mm), so please check the screw size before purchasing. ●Material Iron (zinc-plated), Nylon, Each wheel can bear a weight of 45 kg. ●For wheel repair of shopping carts, suitcases, carry boxes, etc., caster replacement Easily replace worn casters yourself! Be sure to check the size of the casters before purchasing. Made of high-quality solid rubber. Provides smooth rotation and full swivel action while protecting the floor. ❗️Anonymous Delivery & Free Shipping❗️ Please check the actual product photos for the condition of the product♪ #Click here for A☆I's product list ✨☜ 38-97 0341 BESTU Screw-in Casters, Threaded Casters, Swivel, with Stopper, 50mm, Swivel, M8 8mm A-type screw, Wagon, Shopping Cart, Furniture, Replacement Tire Kit, DIY, Twin Wheel, Hard Rubber Casters, 50mm diameter, Set of 4