Our D-ring tie down kit can be mounted to the side of your aluminum dog box to aid in securing your box during transport. Design includes a flush mount pan fitting with rubber washer. The large flip-up D-ring anchor point folds away when not in use, and is versatile enough to accept most tie down end fittings. This piece has 2 fastening points, and the ring is designed to stay centered in the trim collar for easy lift access. Sold in pairs. This item is only sold as an add-on to a dog box purchase.