Sure-Lok Wheelchair/Scooter right Hand Tie Down Hook Retractor, L Track System This is a right-Hand Titan Series single wheelchair securement retractor configured specifically for L-Track floor systems. It utilizes an automatic self-tensioning, self-locking mechanism to keep wheelchairs stabilized during transit. Sure-Lok retractor shows some wear but is in good condition. Please look over photos as they are part of the description.