Breast Development: 1. Choose breast cup according to customers needs, connect the cup and aspirator socket. 2. Let customers half-sleep to stretch out breast, cover breast with plastic cloth, 't apply on people with sunken breast. 3. Turn the air pressure knob to the highest point in the cup, turn the strength knob to the lowest point, then press to choose inspiration and turn the rhythm knob to breast lifting (or press 1, 2 and breast lifting alternately). 4. Put the cup on breast, and leave breast and the cup closely touched. For people with different breast sizes, it is suggested to apply the instrument on smaller side for 5 times before applying on two sides together. 5. Adjust strength knob from weak to strong, and then adjust air pressure until customers feel comfortable. After 20 minutes, turn the air pressure knob to the highest point, turn the strength knob to the lowest point to the cup, the apply on breast lifting cream. Specification Item Type : Vacuum Suction Cups Model Number: VL-JA099-22 Cup size: 21 cm Rhythm Massage Treatment (Fingertip Moving): 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 (or press 1, 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 the moving finger. Color: Transparent Material: ABS Package Contents: 2 x Vacuum Stimulator Cups Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!