DescriptionManufactured especially for manual breast pump. They can help collect breast milk, bring more conveniences. Made of food grade silicone material, they are safe and durable as well as practical for use. Their anti backflow design allows you to collect breast milk in a more clean and easy way.Features-Color: Transparent -Material: Silicone -Size: About 10.00X10.00X6.00cm/3.93X3.93X2.36inch -Manufactured with premium silicone material, durable and practical to use. -High-quality silicone material ensure the safety and heath for both baby and parent. -They are suitable for kinds of manual breast pumps. Easily meet your different needs. -Their all surfaces are polished with no burr, no harm to skin, safe to use. -Easy to clean, you just need to flush them with clean water.