Pearl PTR-1824, Add-On Rack for Pearl PTT-1824W Percussion Table, Pearl's popular PTT-1824W Trap Table can now be easily converted to a two-level folding rack without drilling or modifications by simply adding Pearl's PTR-1824 Add-On Trap Table Rack. The PTR-1824 Trap Table Rack installs in seconds using clamps and folds flush with the table for easy pack-up. Included are four straight and four angled 3/8" knurled posts that clamps anywhere on horizontal or vertical areas of the rack thanks to their unique clamping system.