The Longevity cup set is a sound choice for cupping therapy. This set of 16 shock and heat resistant plastic cups comes in a wide choice of sizes ranging in diameter from 0.7 inch to 2.5 inch. These cups are fully transparent and can be easily sterilized in boiling water. Set of 16 includes the following diameter cups: 2.5" (4), 2.1" (8), 1.6" (1), 1.3" (1), 0.9" (1), and 0.7" (1). Each set comes with a pistol-grip hand pump, an 18" plastic extension tube, a short booklet, and black nylon carrying case.