SIZE:10*10*2.5cm Protection and relief: the breast shells are designed to protect heavy or cracked nipples. They prevent friction and can help relieve blockages. In addition, they can be used to collect every drop of breast milk, whether at home or on the go. Safety aspect: the breast cups are made of food-safe silicone material and PP. They are safe and healthy, BPA free and odorless. This ensures that breast milk is not chemically contaminated. The bowls can also be sterilized by boiling in high temperature water. Inverted triangle design: the design of the bowls allows you to collect up to 110 ml of breast milk on both sides, which ensures that no drip is wasted. This is a significant increase in capacity compared to older models on the market. The granular design gently adheres to the skin and can be used for a massage. Comfortable to wear and clean: the chest cups are lightweight and comfortable and fit in most bras. The silicone opening diameter of 30 mm should meet the physiological needs of most mothers. They are easy to wear and do not affect the external appearance. They are also easy to clean. Ventilation design and leak proof: the ventilation design allows air to circulate, which promotes healing and ventilation of the nipple. The breast cups are also convenient for transferring breast milk into bottles. A buckle is included and can be tied to the bra straps to prevent accidental leakage of breast milk.