Locking flex head handle provides adjustable angles giving greater access. Design allows for 40% more strength than conventional square drive ratchets. Ratchet head is up to 50% slimmer than conventional ratchets. Pass thru ratchet and socket system eliminates the need for deep sockets. Longer length for improved reach and torque Includes 1/4" drive sizes: . 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16", 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 3" Extension Bar, 6" Hollow Extension and 1/4" Square Dr. Quick-Release Adapter Packaged in a blow molded case