Simple installation.. just "press" it on. Special "high-tack" pressure sensitive adhesive liner - no special tools required. Guaranteed to stick to plastic, painted or metal surfaces. Strong bonding in all weather/wind conditions. Durable, all plastic construction (UV stabilized). Can be installed onto areas where water may "pond" (up to 1/3" deep) and maintain its water-tight seal.

Size : 1-1/4" H x 4" dia.