"Set includes (2) 27mm Flanges and (2) 40"" Tubing. Set includes (2) 4 oz Mothers Milk Storage Containers and (2) Duckbill Valves. Set includes (2) Storage Container Caps/Feeder Cups and (2) Rings. Set includes (2) Narrow-Mouth Container Adapters, (2) Ring Covers, and (1) Container Holder."