3.0 Willow wearable breast pumps - 24mm with 17mm and 19mm inserts. Comes with the 2 pumps, a carrying case (my name is written on the back of the case), 3 containers, 4 flex tubes, 1 pair of 17 mm size inserts, 1 pair of size 19mm inserts, and 59 Willow milk bags. Used for about 8 months but only for about 5 days each month when I was unable to nurse the baby due to my work schedule. You can buy all replacements parts on the Willow site. I tried to price this knowing someone may only use the pumps themselves and the bags, buying all new replacement parts otherwise. Open to offers