Rubber Tapered Plug 45mm to 56mm with 8mm Hole Tubes Stopper White 2 Pieces Roller Bottles Pipettor is not included here

Pipettor is not included here

1 x  Metal Button Switch

Outside Diameter: 20mm

34-inch x 1

Overall Length: 200mm

Rubber Tapered Plug 45mm to 56mm with 8mm Hole Tubes Stopper White 2 Pieces Roller Bottles Pipettor is not included hereWhat is this? The Rubber Tapered Plug is great for laboratory utensils such as flasks, test tubes, or other laboratory applications, also can as a sewer plug, water pipe plug, or drain plug. What will I get? The tapered plug is in size of: Bottom Diameter: 45mm 1. 77 inch; Top Diameter: 56mm 2. 2 inch; Height: 35mm 1. 38 inch; Fit Hole Size: 48 54mm; In the package of: 2 x Rubber Tapered Plug Are there any advantages of the product? Made of Rubber,