2x Lifting cups 150ml/180ml Breast enlargement for buttocks lifting body massage 180ml Clear This pair of vacuum suction cups is suitable for vacuum bubble machine. Buttock suction cups, large lifting suction cups (suction cups only) Mega cups are made of premium material. Diameter: 6,5 inches, 8,3 inches. Capacity: 150/180 ml, with comfortable hand feel. With the help of suction cups, it is very effective for women of all ages. Specifications: 1 . Choose the right type of movable finger tip, connect the cup and inhalation socket with a flexible tube. 2. Turn the air pressure knob to the highest point in the cup, turn the force knob to the lowest point, then turn on and select the function to select the inhale and turn the rhythm knob to face the rhythm or (or press alternately 1, 2, face rhythm 2 alternately). 3 . Set the force knob from weak to strong, then adjust the air pressure until customers feel comfortable. 4. After 20 minutes, turn the air pressure knob to the highest point and turn the force knob to the lowest point to remove the moving finger. Size Chart: Diameter 150 ml: 6,5 inches Diameter 180 ml: 8,3 inches The package includes: 1 pair of vacuum suction cups