This replacement grommet features a two-piece design for easy installation and secure attachment. The grommet kit includes a 12" rope with looped end for securing your Splash Island to your drift anchor. The two-piece grommet fits the 3-layer Splash Island (item #109522) and the O'Brien 3-layer Softee Water Carpet. Grommet measure 4" dia. overall. 1.75" dia. hole.