No. 178 Solid Brass Combination Padlock, 5 16 in dia, 1 in L X 1 in W, Brass ORS NASCO Compressible Graf Tite® high pressure seats withstand Compressible Graf Tite® high pressure seats withstand high temperatures and extend tip life In tip mix resists flashbacks for maximum efficiency Full swaging minimizes gas turbulence Concave tip end reduces backfire and resists flameout when base metal is accidentally contacted during cutting For hand 24 in crossbar legs Adjust to sizes 6 in x 6 in or 6 in x 8 in Pre drilled for casters Steel tubing Set your own combination convenience and security 4 digit dialing allows for thousands of possible combinations