Product name: 3-d printer pneumatic connector clip Type: Pneumatic connector Product use: Fasten PTFE tube to produce stability 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 package content, other merchandise aren't included. Note: Light taking pictures and diverse exhibits could cause the color of the article in the photo barely diversified from the real thing. The dimension allowed error is +/- 1-3cm.