Feature: 1. STAINLESS STEEL: Stainless steel cork borer is made of stainless steel material, strong and durable, not easy to damage, long service life. 2. NOTE: Punching must be perpendicular to the level of the plug to avoid skewed holes. Rotate in the same direction, not back and forth. 3. USE: Cork rubber stopper borer tool is used for cork or rubber stopper, convenient for experimental gas extraction. 4. EASY TO HANDLE: Rubber stopper borer tool is easy to operate, with a long and comfortable handle, very convenient to use. 5. SCOPE OF APPLICATION: Cork borer set is very practical, ideal for schools, laboratories, is one of the laboratory fixed accessories. Specification: Item Type: Cork Borer Material: Stainless Steel Product Size: Approx. 11.5x9x3cm / 4.5x3.5x1.2in Use: For Cork or Rubber Stopper Drill, Convenient for Experiments to Take Gas. Package List: 2 x Cork Borer Note: Manual measurement there is 0.1–0.2cm error.