Material: plastic, glass Specification: No. 1 diameter is 24mm, No. 2 diameter is 34mm, No. 3 diameter is 44mm, No. 4 diameter is 54mm, No. 5 diameter is 64mm, Color: blue, Features: 1. Portable, durable, space saving, easy to use 2. Small inner diameter, suitable for soft and delicate parts 3. Relieve fatigue and remove facial wrinkles How to use: Pinch the upper end of the cupping to suck the ball, put the lower plastic mouthpiece close to the skin points, loosen the mouthpiece, stay for 10-15 minutes, and then pull out the cupping. Reminder: After the pot is used up, please wipe it with medical alcohol or disinfectant. Don\'t cook. Do not take a bath or catch cold for a certain period of time after cupping. Comment: 1. Manual measurement tolerance is 2-5g. Please don\'t mind your substitutes. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. thank you very much! 3. SKU color is product color Package Included: 1* Household glass cupping