Features:_x000D_ _x000D_ 100% Brand new and high quality. _x000D_ Made of premium rubber with good elasticity, smooth surface and hard wearing. _x000D_ Used for filtration assemblies, together with a flask for filtration. _x000D_ They can be used singly or nested with adjacent sizes. _x000D_ Nine different diameters, various sizes to meet your needs. _x000D_ _x000D_ Specification:_x000D_ _x000D_ Material: Rubber_x000D_ Weight: 218g_x000D_ Color: Green _x000D_ Size: (As pictures shown)_x000D_ #1: Top Diameter: 17mm/0.67in; Bottom Diameter: 10mm/0.4in_x000D_ #2: Top Diameter: 23mm/0.9in; Bottom Diameter: 15mm/0.6in_x000D_ #3: Top Diameter: 29mm/1.14in; Bottom Diameter: 20mm/0.78in_x000D_ #4: Top Diameter: 35mm/1.37in; Bottom Diameter: 21mm/0.82in_x000D_ #5: Top Diameter: 41.5mm/1.63in; Bottom Diameter: 26mm/1in_x000D_ #6: Top Diameter: 49mm/1.93in; Bottom Diameter: 30.7mm/1.2in_x000D_ #7: Top Diameter: 61.5mm/2.42in; Bottom Diameter: 42.5mm/1.67in_x000D_ #8: Top Diameter: 71mm/2.8in; Bottom Diameter: 53mm/2in_x000D_ #9: Top Diameter: 83.5mm/3.28in; Bottom Diameter: 64.5mm/2.54in_x000D_ _x000D_ Package Includes:_x000D_ 9 x Filter Adapter Cone_x000D_ _x000D_ Note:_x000D_ 1. Please allow slight error due to manual measurement.Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.