This set includes 20 dual-head tire pressure gauges designed for measuring air pressure in vehicle tires. Each gauge features two different chuck designs: a standard push-pull chuck and a 30-degree reverse chuck for reaching difficult valve positions. The gauges display readings in both PSI (10-150) and Bar (1-10) with 2 PSI increments for accurate measurement. Constructed from zinc alloy and solid brass, these gauges are built for heav