The Supplemental Nursing System is a nursing device specifically designed to help mothers and parents breastfeed/chestfeed by supplying additional milk to the baby while they are being fed at the breast/chest. Facilitates bonding and skin-to-skin contact. Promotes milk supply by stimulating the breast through sustained sucking. Supports adoptive, surrogate, same sex, transgender and non-binary parents to create a breastfeeding/chestfeeding experience. Supports babys oral development of sucking skills to create vacuum. Provides milk supplementation without the use of bottles and teats.Includes:1 - Container & Lid1 - Anti-leak Twistlok Lid1 - Twistlok Tube1 - Ring1 - Cleaning aid1 - Clamp1 - Clip