[Reduce Bubbles] The unique design of this mixing head helps minimize air intake during mixing, reducing bubbles and ensuring epoxy resin is stirred more evenly in the container. [1/4 Inch Hex Shank] The mixer attachment features a 1/4 inch hex shank, compatible with most drills. It is easy to install—simply insert the mixer paddle into the drill, tighten, and use. Includes 4 pcs 16.5 cm (6.5 in) mixer paddles and 2 pcs 22 cm (8.7 in) paddles, sufficient to meet your mixing needs. [4-Blade Design] Designed with 4 helical blades based on helical mixing principles, these mixer paddles enable easier, faster, and more uniform mixing of resin. They replace manual stirring, saving time and effort while improving efficiency. [Quick Mixing] The 4-blade mixer paddle works with a drill for powerful mixing, making it ideal for viscous liquids like resin. Compared to manual mixing, it is faster and more efficient, saving time and labor. [Wide Application] This reusable mixer attachment is suitable for mixing epoxies, paints, ceramic glazes, stains, and other thin to thick liquids. Use it to speed up mixing and improve results. Product Name: Mixer Paddle Material: Plastic Color: Black Size: 16.5 cm (6.5 in), 22 cm (8.7 in) Compatible with: 1/4 inch drill Application: Mixing epoxies, paints, ceramic glazes, stains, and similar liquids Package Includes: 4 x 6.5 Inch Mixer Paddle, 2 x 8.7 Inch Mixer Paddle