Used lifter tray kit. This will fit all Gen III and Gen IV LS blocks. This includes 4 trays as shown (slotted on 1 side for standard Gen IV blocks.
Fits 1997-2005 Gen III 4.8L/5.3L/5.7L/6.0L LS engines, 06-09 Gen IV engines (LS2/LS3/LS7)
The item in the photo is the actual item being sold.