Pigeon Glass Feeding Bottle K-4 is made of high quality durable material. The streamlined shape makes it easy for mothers to hold and keep clean. These nursing bottles are designed in such a way to make feeding easy for the mothers as well as the child. Pigeon Glass Nurser K-4 container is produced using premium borosilicate glass material with superb straightforwardness and high warmth obstruction. Ultra soft silicone with its double thickness ensures ideal softness and elasticity so that your baby can latch on comfortably and easily.