This adapter is designed to hold your Front Runner Water Jerry Can as well as protect the tap when in transit. The Front Runner Pro Single Jerry Can Holder – by Front Runner offers a smart no rattle no wear solution. The adjustable locking steel clasp means your cans can be secured firmly in place over a lifetime of off-road abuse. For use with Plastic Water Jerry Can With Tap – by Front Runner. The new flexible top strap provides greater security and convenience when removing the Jerry Can. Includes an extended strap catch. Made of black powder coated stainless steel and designed to easily bolt to the Front Runner Roof Racks using the flat slotted slats in the rack.