Description If you are looking for some silicone stoppers, then you must not miss our silicone stoppers. Simple in structure, very easy to use. Suitable for professional and personal use. Small and light, easy to take; strong sealing; food-grade rubber stopper, safe and reliable. Features - Color: As shown. - Material: Silicone. - Size: 2.00X2.00X3.50cm/0.79X0.79X1.38in. - The silicone stoppers are small in size and light in weight, convenient to store and use. - Widely applied in laboratories, research institutes, universities and other places. - Fine workmanship premium silicone material, and good durability, can be used for a long time. - The silicone stoppers work well with tubes, flasks, and other conventional flask mouth. - There are enough bottle stoppers to meet your different needs. The silicone stoppers are small in size and light in weight, convenient to store and use. Widely applied in laboratories, research institutes, universities and other places. Fine workmanship premium silicone material, and good durability, can be used for a long time. The silicone stoppers work well with tubes, flasks, and other conventional flask mouth. There are enough bottle stoppers to meet your different needs.