Description: This pair of vacuum suction cups is suitable for vacuum cupping machine. Buttock Vacuum cups, Large Size Butt Lifting Cups (Only Cups) Mega butt cups is made of premium material. Diameter: 6.5inch, 8.3inch. Capacity: 150/180ml, with comfortable hand feel. Body shaping by vacuum cups is very effective for women of all ages. Specification: 1. Choose appropriate type moving fingertip, connect the cup and inspiration socket with flexible tube. 2. Turn the air pressure knob to the highest point in the cup, turn the strength knob to the lowest point, then press power on and functional choice to choose inspiration and turn the rhythm knob to face rhythm or body rhythm (or press body rhythm 1, body rhythm 2 alternately, face rhythm I and 2 alternately). 3. Adjust strength knob from weak to strong, and then adjust air pressure until customers feel comfortable. 4. After 20 minutes, turn the air pressure knob to the highest point, and turn the strength knob to the lowest point to take off the moving finger. Size Chart: 150ml Diameter: 6.5inch 180ml Diameter: 8.3inch Package Includes: 1 Pair Vacuum Suction Cups Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!