GF Outdoors Rod Anchor Thru Hull Retracting Tie Downs utilize a simplistic design to stretch and retract. Any boat, whether fiberglass or aluminum,  can utilize these retracting tie downs as long as the gunnel of the boat is open (not foam filled). We offer the Tie Downs in multiple color options to match your boat and best of all, the tie downs are replaceable! This kit consists of the 2 sets of Thru Hull grommets for both sides with self tapping stainless screws, 2 colored rod tie downs, and deck mounting kit with stainless hardware. Drilling the gunnel of your boat with a 1 inch hole saw bit is required for installation.  GF Outdoors LLC is not responsible for any damage to yourself / property while using or installing any GF Outdoors products.