Tire gauge with tire tread depth gauge 0-120 PSI. Dial type gauge with internal diaphragm construction for greater durability. Built in tire tread gauge. 45 degree chuck head with deflator valve. Durable rubber boot for added durability. Product Features:Dial type gauge with internal diaphragm construction for greater durability45 degree chuck head with deflator valveDurable rubber boot for added durabilityBuilt in tire tread gaugeMaximum pressure 120 pounds per square inch