The funnel flask adapter set is designed for efficient and reliable filtration. Made from silicone material, resistant to frequent use, ensuring durability and longevity. Its versatile design allows it to be used with various containers such as filtering bottles and funnels, making it convenient and practical for different laboratory tasks. Features -Color:White -Material:Silicone -Size:8.30X8.30X3.20cm/3.26X3.26X1.26in -Size:7.10X7.10X3.20cm/2.79X2.79X1.26in -Size:6.00X6.00X3.20cm/2.36X2.36X1.26in -Size:5.00X5.00X3.20cm/1.97X1.97X1.26in -Size:4.20X4.20X2.70cm/1.65X1.65X1.06in -Size:3.40X3.40X2.30cm/1.34X1.34X0.90in -Size:2.80X2.80X1.60cm/1.10X1.10X0.63in -Size:2.20X2.20X1.40cm/0.86X0.86X0.55in -Size:1.70X1.70X1.20cm/0.67X0.67X0.47in -The filter adapter cones set is made of silicone material to assure durability and can be reused. -The design of the filter adapter is versatile and can be used with multiple types of containers. -The tapered collar is reusable, suitable for different sizes of experimental apparatus. -The filter adapter cones kit includes different size, you can choose according to your needs and suitable size. -Appropriate dimension is convenient for you to carry and store without taking too much space. Package list: 9 x Filter Adapter Cones