THICKENED PVC MATERIAL: The PVC fume collection hose is made of thickened PVC material making itself super puncture , so it can withstand all kinds of dust and debris generated from cutting, milling or sanding wood during use without being punctured, and it can also handle the smallest sawdust without leaking. CLEAR PVC DUST COLLECTION HOSE: The clear PVC material allows you to see not only dust and debris, but also if any buildup or clogging has occurred, dealing with unexpected situations in a timely manner. PREMIUM CARBON STEEL WIRE COIL: Premium carbon steel wire coil not only strengthens the hose and makes it less prone to knots, but also enables electrostatic discharge when the PVC dust collection hose is grounded at both ends. EASY TO INSTALL: Package includes 1 x 2 1/2Inch x 10Ft Heavy PVC Dust Collection Hose (Compression ratio is 3:1), 4 x tube clamps with turn keys for easy loosening or tightening. Simply tighten the clamps on both ends of the hose, secure them, and you are ready to use. PVC fume collection hose for dust collectors, shop vacuums, industrial vacuum systems, lawn tractor leaf catchers and PVC dust collection systems for woodworking applications, etc (corresponding diameters)! Colour:Transparent Material:PVC Package Contents: 1 * Dust Collection Hose(inner diameter:6.4cm, length: 3meter) 4 * clamp Only the above package content, other products are not included. Note: Light reflection 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.