"? This table raiser is Used for furniture leg extenders. Description: 1.The desk risers for desk legs is Made from Aluminum Alloy material, anti-corrosive and will not rust.sturdy and durable. 2.Adjustable table leg risers are 4 levels/heights, height adjustable from 5"" to 12.5"".The large size anti slip pad helps prevent carpet and hard floor from damage. Dimension: Adjustable height : 5"" , 8.25"" , 11.25"", 14.5"" Inatallation: The desk extender are simple in structure and easy to install. When you need to adjust the height of the table, directly use the eye bolt to align the holes of corresponding height, put the type B locking pin to eye bolt. ? Package Include: 8pcs x table height extenders 8pcs x eye bolts 8pcs x type B locking pin Quality Guarantee, If there is any quality problem, please feel free to contact us. Refund or Replacement for any quality problem."