4 oz DIY Kit - Mason Bottle
This 4 oz Mason Jar Baby Bottle DIY Kit includes: one set of silicone nipples (slow flow), one silicone sleeve (to fit the 4oz jars; sold separately & shown in the accessories), and one plastic cap. The wide breast-like nipples are designed to transition between breast and bottle and have a built-in ventilation system to reduce gas and colic. The silicone sleeve adds protection and grip. We recommend hand washing and thoroughly drying your mason jar rings to extend their lifespan. The good news is that everything else can go in the dishwasher: glass mason jars, our silicone nipples, silicone sleeves, and plastic caps! All components are BPA-free and Made in the USA.