ITEM NAME:Set of 4 Medical Vacuum Silicone Transparent Massage Cups Cupping Jar Body Product Description Set of 4 Medical Vacuum Silicone Transparent  Massage Cups Cupping Jar Body Description Product Name: Massage Cupping Jar Material:Silicone Net Weight: 320g Colorï ¼Å¡Clear ï ¼Ë†a little whiteï ¼â€° Package included : 4 x Cups Size Chartï ¼Å¡ #1 7*7.8*6.6CM   #2 5.5*6*5.2CM    #3 4.5*5*4CM     #4 4*4*3.2CM Number Diameter (mm)Width (mm) Height (mm) 4 25 ±2 40 ±2 29 ±2 3 40 ±2 63 ±2 29 ±2 2 52 ±2 82 ±2 45.3 ±2 1 63 ±2 100 ±2 72.5 ±2 Features: The cups are very flexible and powerful, negative pressure (vacuum), natural silicone cups, that can be used to perform deep tissue massage, or used stationary as in traditional cupping therapy. The flexibility allows silicone cupping to be applied on almost any body part, making them the best choice for deep tissue massage and joint manipulation. The cupping massage therapy mimics manual deep tissue massage, but “in reverse†– instead of pressing down on the tissue, it is pulled up. This technique is excellent for patients with fibromyalgia, as there is no painful pressure. They are beneficial in drawing out inflammation and relieving many.The cupping massage therapy mimics manual deep tissue massage, but “in reverse†– instead of pressing down on the tissue, it is pulled up. This technique is excellent for patients with fibromyalgia, as there is no painful pressure.