ITEM NAME:5pcs Silicone Flask Test Tubes Bottle Tapered Rubber Stopper Bungs 15mm-19mm Description: Designed in tapered shape with standard demension,easy to plug in or pull out,creating an airtight seal in the mouth of your carboy or fermenter Well made with sturdy rubber stoppers to provide the best primary and fermenter arrangements possible,for laboratory, household, and industrial use Specification: Material: Premium Silicone Color: White Size Chart: Size #1: Top Diameter: approx. 13mm / 0.5 inch Bottom Diameter: approx. 9mm/ 0.35 inch Height: approx. 27mm / 1 inch Size #2: Top Diameter: approx. 15mm / 0.6 inch Bottom Diameter: approx. 11mm / 0.43 inch Height: approx. 29mm / 1.14 inch Size #3: Top Diameter: approx. 17mm / 0.66 inch Bottom Diameter: approx. 12mm/ 0.47 inch Height: approx. 32mm / 1.26 inch Size #4: Top Diameter: approx. 19mm /0.72 inch Bottom Diameter: approx. 15mm / 0.6 inch Height: approx. 66mm / 2.6 inch Size #5: Top Diameter: approx. 22mm / 0.86 inch Bottom Diameter: approx. 17mm / 0.67 inch Height: approx. 36mm / 1.4 inch Package Includes: 5 Pieces Test Tube Stopper Plugs.5 Pieces Test Tube Stopper Plugs. Material: Premium Silicone. Size Chart Height: approx.
