With an interlocking gripper pad, The Wedgy, by ProLeveler, leveling shims "stop the wobble" to stabilize outdoor furniture on all types of terrain including grass, gravel, and sloping ground. Perfect for all your outdoor events, camping and RV adventures with easy lock-in-place assembly, water resistance, and universal sizing. The Wedgy goes everywhere you go.  

Specs: Oval-shaped 2 in x 1.75 in x 0.5 in