T&K Magnetic Barrel Rest. Pad sits on the ground (magnet up), waiting for you. Touch barrel to magnet when you are ready to move -- just touch and go! Soft, lightweight, waterproof pad protects your barrel when you set your gun down. While stationary, place your barrel on the soft pad to rest your arms. Not suitable for titanium chokes or stainless-steel barrels. Caution: Always remove pad from barrel when chamber is loaded.