Big Horn 11498 4-Inch by 39-Inch Adjust-A-Flex Hose, your machines like band saws, scroll saws, drill presses, and sanders can have a dust port temporarily aimed right where the dust is created. Its ability to twist, bend, expand, or contract, and then hold this shape, makes it ideal for situations where conventional hose cannot be used. Made from durable polypropylene plastic in 4-Inch diameter. When compressed this hose measures only about 12-Inches, yet stretches to more than 3-feet when fully extended. Use hose clamps (not included) for best connection.