Cube Lock is used to keep your Cube from sliding off the stand. Our Add-0n’s like the Trommel, Gold Banker and Nugget Zone are heavy enough to cause the cube to slide forward. These little gems are the answer! Simply put them on, do a simple adjustment and just “set-em-n-forget-em”. Don’t forget to check out the SlipNot, works the same way except it keep your stand legs from slipping!