The 10 Piece Deluxe Cup Set contains plastic cups that are designed to be shock and heat resistant. This allows them to be sterilized in boiling water. Each cup features release air-locking valves that are easy to use. 10 Piece Set includes: 2" diameter (7), 1.8" (1), 1.6" (1) and 1.3" (1). Each set comes with a pistol grip hand pump.