EnJoye personal accessory set. Includes: (2) 27 mm flanges, (2) 40 tubing, (2) 4 oz Mothers Milk storage containers, (2) duckbill valves, (2) storage container caps/feeder cups,(2) rings, (2) narrow-mouth container adaptors, (2) ring covers, (1) container holder, (1) bacteriostatic filter and instructions.