*** IN STOCK SHIPS TODAY *** These Allstar Performance piston and connecting rod organizers are designed to safely support piston and connecting rod assemblies during engine assembly or teardown. They feature slots that are 4.750" long x 1.500" wide to accommodate most piston/rod combinations. The bottom tray also serves as a handy drip pan if a rack is coming out of a fresh run engine. Piston racks are manufactured from durable steel, have a black powder coated finish for durability and can be disassembled quickly for storage. Rack measures 24.50" long x 12.00" wide x 9.50" tall.