Festool's Antistatic hose design helps you work cleaner by preventing dust from accumulating on the exterior of the hose. It helps you work more safely by preventing static discharge or shocks. You'll work more efficiently with system that prevents clogging due to particulate buildup inside the hose. durable, pliable design withstands heavy use and prevents kinking, for longer service life and more efficient work. Includes: 27mm Antistatic hose with rotating connector and reducing sleeve.