Good sealing connection: inner bushing with 1/8 BSP male thread and inner cone for a good sealing connection to a filling hose with mini bore and swivel nut. Design: made of hexagonal rod, provides a larger sealing area for the glued seal. Can be used between the mini bore hose and the charge adjustment of the immersion cylinder. Application:Standard 1/8 BSP size for PCP air filling probe, also fits most quick release. Easy installation: easy installation and maintenance. Replacement for the inner quick release. stainless steel Durable in use. Corrosion resistant High strength and hardness. Colour: Silver+Gold Material: Stainless Steel+Copper Package Contents: 1 x 1/8 BSP Quick Release Coupler 3 x connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.