Product name: 3-d printer pneumatic connector clip Type: Pneumatic connector Product use: Fasten PTFE tube to provide balance Use pneumatic connectors: PC4-01, PC4-M6, KJH04-M6, PC4-M5 Colour: blue Material: plastic Size: 1cm Package Contents: 20 * pneumatic connector clips Only the above kit content, diversified products aren't included. Note: Light shooting and varied exhibits could cause the colour of the thing within the photo a bit diversified from the real thing. The measurement allowed error is +/- 1-3cm.