Tool is made from 3/4" steel tubing that uses a 10.00" x 2.00"" nylon strap to wrap around the oil filter housing and as you rotate the hex nut on the oil filter cap the strap gets tighter on the housing allowing you to disassemble the oil filter for maintenance.
Wrench can be used with filters that range from 2.00" thru 6.00" in diameter. Steel is cad-plated finish.