It is made of durable plastic. Effectively facilitates, among others, pouring wine.
Auto Syphon Various Options 4.5L & 23L Sizes With Clip & Clamp Or Wand Wine Beer
Plastic Syphon Clamp - For Homebrew Cider Winemaking - Controls Syphon Tube Flow
Red Clip for Syphon 5/16" Tube Beer Wine Lager Cider Home Brew Bucket Clip UK
Bucket Clip For Syphon - Fits Home Brew & Wine Making Fermenters
KegLand Handy Clamp for BrewZilla 4 inch Long Brewing Beer KL24686 Pack of Four
