Features Uniform Mixing: The paddle adopts a spiral 5 blade design, with strong mixing force, which can make the mixing of ep-oxy resin easier and more uniform. Reduced Air Bubbles: The unique design of this mixing head allows you to incorporate as little air as possible during the mixing process, reducing air bubbles in the finished product. Fit With 14in Bits: This mixing tip can work with any 14in bits or you can use it with a mixer and run it at 180 rpm for better mixing. ABS Material: Our resin paddles are made of ABS material that won't bend or break during use and are reusable. Easy Cleaning: Wipe up residue with baby wipes, then wash paddle with warm water and mild soap is ok. Spec: Item Type: Resin Mixer Paddles Material: ABS Connection Shank: 14in Hex Shank PackageList: 4 x Resin Mixer Paddle Package List 4 x Resin Mixer Paddle