1.27 cm (1/2") anti-slip comfort pad. Gimbal rotates almost 90 vertically and horizontally. Fits gimbaled rods to 3.81 cm (1 1/2") and crutch butt rods to 4.4 cm (1 3/4"). Quick-snap buckle for convenient fastening. Fits all sizes up to 52". Pin in the rotating ball can be used in the vertical or horizontal position. Plate is made of the tough, engineering plastic acetal. The gimbal is glass-filled polyester and is self-lubricating. SPECS: B200 ROTATING GIMBAL