1)High quality 2)competitive prices 3)Timely Delivery 4)ISO9001 CERTIFICATE 5)Strenthful Specification:Dir:4x2.5mmLength:1.5MAdaptor G1/8"wide range service in general industrial services, mobiles shop pneumatic tools, air tools. Etc. SBR blended, black, smooth EPDM/SBR blended,black, or red , yellow, etc. Weather and ozone resistant.