Heavy chrome plated castings with protective sleeve over dial tube Paddle trigger for accurate control is riveted to body 12" swivel dual foot chuck Solid brass bar calibrates from 10 to 120 PSI in 2 PSI increments Plated steel handle is riveted to body The built-in solid brass bar calibrates from 10 to 120 PSI in 2 PSI increments. Reaching the stems on those inner dual wheels is a breeze with the dual head chuck on this outstanding tire inflator from Amflo Products!