Specifications: You'll receive 10 cups of various sizes (Diameter: (6) 1 3/4" cups, (1) 1 1/2" cup, (1) 1 1/3" cup, (1) 1 1/8" cup, (1) 4/5" cup) and a suction gun that attaches to each cup. Place the cup over your hot spot and gently pull back on the trigger. There are 8 removable spring-loaded acu-points that are centered within the cups for additional stimulation.Note: We strongly recommend careful use of this cupping kit. When used properly, you can achieve stimulating pleasure. However, excessive and over-eager suction can cause damage to the blood vessels resulting in bruising. We suggest that this item be used on moistened skin.