Big Horn 11498 4-Inch By 39-Inch Adjust-A-Flex Hose Twist, bend, expand, or contract - it holds its shape. Allows you to temporarily aim right where dust is created Ideal where conventional hose cannot be used 4-Inch hose made of durable polypropylene plastic Compresses to approx 12-Inches; extends to more than 3-feet For best connection use hose clamps (not included)