Purchased new and used for about six months on the circuit, installed on a ZITA Ⅲ. It works without any problems. Vehicle: MAZDA RX-8 SE3P 03.05〜 Retail Price: ¥16087 Specifications: Equipped with left and right dual-locking mechanism (quick lever) Total slide amount: Front and rear 205mm, 20 notches Compatible with side-mount type with mounting hole pitch of 389-401mm left and right, and 288±2mm front and rear Seat fixing bolts included. This is a competition-use-only part and does not conform to safety standards. Please understand that this is a used item. #RX-8 #SeatRail