Releases Tension on Serpentine Belts With a Spring Loaded Idler Pulley Ratcheting head with freewheel position allows maximum leverage Set ratcheting head to the middle or neutral/freewheel position and once maximum travel point is reached simply click lever into place to lock the ratchet mechanism Comes with extension for hard-to-reach idler pulleys This tool will work where conventional ratchets or breaker bars wont fit due to limited access - Now includes 19mm socket for Honda and Toyota applications - Shipping weight 2 lbs 10 oz Includes 13mm Socket 14mm Socket 15mm Socket 16mm Socket 18mm Socket 19mm Socket 0.375in Square Drive 0.5in Square Drive Extension Handle Assembly