Permanently connects between the air hose and the coupler, available for quick jobs Rubber tip protects workpiece No need to keep re-connecting and disconnecting air tools Zinc alloy body with brass nozzle Inlet size: 1/4"-18 NPT female; Nozzle: 1" L x 1/8" x 1/2" OD; Thread size: 1/8"; Overall dimensions: 2-1/4" L x 1" W x 2-1/4" H