Use high quality ABS, others. thickened and elongated, strong in quality and durable. , wear-resistant and durable. High and Low temperature resistant, Solid and never be out of shape. Longer lifespan and more durable. more than 50,000+ hours. Perfect for home or dorm room, Creates instant under bed storage space. Stronger enough, Safely Support a Total of up to 100kg! 't Scratch or Dent Hardwood Floors. Height adjustment, Adjustable Bed Riser System Instantly Creates Additional Under Bed Storage. Non- silicone & Safety, it 't move easily and safe enough. Easy to install, No Drilling, Stick and Play, Just adjust the position without punching. Specifications: Life Time: 50000+ Hours Colour: Black Material: ABS Size: 50x50x40mm, heightened range 40-65mm Package Contents: 2 x Bed Furniture Risers Heightening Pads Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.