Features: The Silicone Plug is designed for high performances sealing in industrial and laboratory environment, offering exceptional heat resistance and durability. Crafted from silicone, these T Shape stoppers provide high elasticity, excellent insulation, and superior sealing performances, making them resistant to acids, alkalis, and high temperatures. Suitable for laboratory technicians, industrial equipment maintenance personnel, and DIY enthusiasts who require reliable sealing solution. Perfect for use in laboratory test tube sealing, industrial equipment hole plugging, and home DIY projects, ensuring fit with fingertip pressure snap locks into mounting holes. With a pack of five/two, these plug is essential for any toolkit, providing long performances and ease of cleaning, suitable for various applications like powder coating, painting, and plating. Specifications: Component:Silicone Type:J10/J10.5/J11/J11.5/J12/J12.5/J13/J13.5/J14 Size:As shown in the figures Package Includes: 2 Optional Package: Package 1 Include:2Pcs Silicone Plug Package 2 Include:5Pcs Silicone Plug note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.