Universal Steel Low Side Mount Brackets, 400mm Length, Black (HC/922) by OMP®. New multi hole steel seat bracket in compliance with FIA Appendix J art. 253. New design, minimum 16 different positions. Length: 400 mm Thickness: 3 mm. Designed utilizing the latest technology, this product by OMP features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards. more details on - https://www.carid.com/omp/steel-low-side-mount-brackets-16-holes-black-mpn-hc-922.html