Description: Premium Material: The Vacuum Cleaner is made from premium Aluminum Alloy and a stainless steel tube, ensuring wear resistance, durability, and long term use.Size: The Air Duster features a 9mm/0.35inch nozzle diameter and a Duster tube with a length of 150mm/5.91inch.Powerful Suction and Blowing Function: This industrial Suction Blower offers both suction and blowing functions, providing strong suction power when paired with an air pump (please note that it cannot be used independently without an air pump).Easy Adjustment for Versatile Use: The two step rotation adjustment allows for easy switching between suction and blowing modes. Simply adjust the screw tightness without having to remove the entire screw, then pull out the stainless steel blower barrel until the scale line aligns with the full blower mouth, tighten the adjustment screw, and it's ready to use.Detachable Dust Collection Bag: For your convenience in cleaning up after use, this Suction Blower comes with a detachable dust collection bag at its base that can be easily opened by tearing off its sticker fastener. Package Includes: 1 Sewing Machine Vacuum Cleaner Set(Air Pump is Not Included) Note: Please allow slightly errors 1-2cm differences due to manual measurement.