Bull Ring 4066 for 2009-18 Ram Low Profile Retractable Tie Downs: -Rail Cap Alteration Required Fits 09-16 RAM Rail Cap Alteration Required- Includes 2 Router bits for Stake Pocket clearing Recommended purchase with 4067 for 1st set- (Includes Router Bits) Stainless steel chassis Low Profile, tonneua freindly Flush Mount Rattle Resistant 1000 lbs. Capacity