MATERIAL: Made of polypropylene (PP) and steel, sturdy and durable, avoiding scratching the floor and carpet SIZE AND LOAD CAPACITY: 50mm diameter wheel, swivel top plate 360 degrees of 38 x 38 mm, mounting height 60 mm, load up to 30 kg per castor LOCKING DESIGN: When the castor wheels are locked, the furniture stays in place and does not slip during use PERFECT FOR: Chairs, sofa, bench, ottoman, coffee table, plant stand, shoe box, toy box and TV stand Description of the product The 360-degree swivel wheel allows for smooth and easy movement, without any squeaks or noises. When the casters are locked, the furniture can be held in place; when the casters are unlocked, the furniture can be moved freely. It's perfect for chairs, sofa, bench, ottoman, coffee table, plant stand, shoe box, toy box and desk stand. television. Specification: Material: PP and steel Loading capacity: 30kg per castor Total height: 60mm Wheel diameter: 50mm Plate size: 38 x 38mm (L x W) Center hole distance: