uxcell 16mm Thread Diameter Oil Connector Air Compressor Spare Fittings Black Product Name: Air Compressor Oil Connector; Main Color: Black Total Size: 56 x 28mm/2.2" x 1.1"(L*Max.D); Material: Plastic Weight: 18g; Package Content: 1 x Air Compressor Oil Connectors Male Thread Size: 16 x 10mm/0.6" x 0.4(D*L) Hole Inside Diameter: 7mm/0.28"