Putco 29859 Pop Up LockersSpecifications Brand: Putco Part Number: 29859 UPC: 010536997484 Get the best of both worlds with Locker truck bed rails with pop up tie downs. The corner die cast sanction pushed closed when not in use and pops up when you need to tie down your cargo. Manufactured with premium grade 304 stainless steel tubing and die cast ends that feature a chrome finish have next level looks. Each tie down end can handle 500 lbs and the spring loaded design is easy