[Widely Compatible]:The valves and silicone diaphragms are for Zomee Z1/ Z2 , 8782/8780, for BabyBuddha's hands-free breast pump, Motif Twist Breast Pump [Pumping Efficiency the Same as ]: The quality and design is the same replacement parts, the valves without on the top and silicone diaphragm are engineered to prevent air leaks and backflow, ensuring a strong, stable suction for more efficient pumping [No Backflow, Non-Leaking]: Silicone diaphragms help keep the suctions strong and tight, avoiding back flow of the milk and speeding up the suction process. valves help the flow of the milk. These also help retain a strong suction to make pumping easier, faster, and more comfortable [Gentle&Safe Food-grade Material]: These breast pump replacement accessories are made of transparent food-grade silicone, free, super soft, odorless,The soft-touch material provides comfort for breastfeeding and promotes effective pumping without causing irritation or discomfort [Easy to Clean]: Wash valves and diaphragm after each use with warm soapy water and rinse well. Please use boiling water/steam, with a temperature of 100(212)for 5-10mins. Color: Transparent Material: Silicone Package Contents: 6pcs * Valves 4pcs * Silicone Diaphragm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.