Plastic
The size of furniture risers 1 inch ((W*L*H)): 3 * 3 * 1.5 inch. The internal size((W*L*H)): 3 *3 *0.3 inch.
Our 1.5 inch bed risers heavy duty are built with high-quality construction that ensures durability and stability.The maximum load-bearing of table legs risers are 2300 lbs.