The unique interlocking design of LynxCap means it will not increase the stack height and ensures a secure fit on your original Lynx Levelers. Specifications•Used For: Create Full Flat Surface On Top Of Lynx Levelers•Type: Interlocking•Length: 21.6 Inch•Width: 21.6 Inch•Height: 7.6 Inch•Capacity: 40000 Pound•Color: Orange•Material: Plastic•Quantity: Set Of 4•With Storage Bag: No Interlocking Blocks | Tri-Lynx Cap Leveling Tops