This quick release grease machine coupler can gives you a whole new experience with the butter machine. With this coupler, the grease will not not going to be everywhere and no more waste. If you are looking for this product, come and have a try, it will not let you down. Features: Preferred Material: This grease machine coupler is made of metal material, which has the characteristics of not easy to break or bend, and has a long service time. Better Using Experience: With this coupler, the grease will not not going to be everywhere and no more waste. Adaptability: This grease machine coupler is suitable for M6, M8 and M10 grease machine heads, the 10mm inner hole at the bottom also makes it suitable for more butter tubes. Portable Size: This grease machine coupler has portable size and easy to carry, you can put it into your tool bags to use and share it with your friends and families. Easy to Install&Remove: You can install this tool into your grease machine easily and remove it in time. Specifications: Material: metal Bottom inner hole: 10mm Package size: 120 * 50 * 15mm / 4.7 * 2.0 * 0.6in Package weight: 150g / 5.3ounce Packing list: 1 * Grease Coupler