Make the transition from breastfeeding to bottle feeding safer and smoother with this wide neck silicone bottle gift set. Due to the softness of the medical grade silicone from which the bottle is made, a 2-collar system is used to increase its stability. The lower secondary collar holds the bottle and flow control filter in place while the main collar includes the cap and slow flow nipple. The flow control filter controls liquid flow and reduces air flow while preventing nipple collapse. The silicone is completely free of BPA, phthalates, PVC, latex, and lead, which gives you peace of mind to match the comfort you and your baby both experience during feeding time. This set includes two 5 oz silicone bottles, an 8 oz silicone bottle, 2 handles, 2 spouts, 2 pacifiers, 2 Level 2 nipples, 2 Level 3 nipples, and 2 extra flow control filters.