The BlueSpot 3 PCE Stubby Ratchet Set In EVA Foam (1/4", 3/8", 1/2") is manufactured from chrome vanadium for increased durability. The ratchets feature a short series handle and 72 teeth provide 5 ratcheting increments making them ideal for use in tight spaces. Quick release function. Package Contents - 1/4'' x 85mm, 3/8'' x 100mm, 1/2'' x 130mmManufactured from chrome vanadium for increased durability72 TeethKnurled non-slip finger grips5 ratcheting incrementsQuick release