Made of high quality PP material，non-toxic， safe and do not harm for children.Color: Pink100% brand new and high qualityMaterial: PP for Cover and Silicone for the BallPlease use boiled water to breast pump 3-5 minute but take away the ball.package including: 1Pc Milk Sucking ToolsSize: Approximately 7 x 2.4 cm / 2.76" x 0.94" (Ball) & 6.5 x 7.5 cm / 2.56" x 2.95" (Cover)First，Cleaning the nippleSecond，Flattening the ball，match the cover with breastSquash with breast by one hand，operate breast pump with another hand.It can improve the efficiency，Save time.