High-pressure floor pump Oversized 85 mm (3.5 in.) gauge Accurate at both low and high pressure CNC-machined aluminum base, steel barrel and piston, and varnished wood handle 01: Original ABS system 03 and 04: ABS-2 system 05: ABS-1 Pro System Presta and Schrader compatible with out flipping the chuck Steel barrel is coated with premium metallic paint