Features: Portable connector, easy to operate, durable For decoration, furniture, decoration, leather. Various sizes are available Air Hose diameter 8*5mm Connector type PP20+SP20 Air Hose diameter 106.5mm Connector type SP+PP30 Air Hose diameter 128mm Connector type SP+PP40 Default image color, if other colors are requiredplease contact us ! Tips The length of the spring tube, we mean the length of the tube when it is not machined into a spring (spiral) shape. For example, a 6-meter pipe is 6 meters when it is not machined into a spiral shape, and is about 5.5 meters after the spiral shape is completed. All sizes are reduced in length after spiral machining Please pay attention to the buyer: the store does not accept any complaints about the size Buyers notice: 1.If the size is not clear, please contact me in time, we will reply at any time (note the time difference) 2.if you are in a hurry, you can choose express delivery! 3. If the goods received are different from what you think, please contact us in time! 4. I hope you have a good shopping!