These plugs form a seal for the port, your laptop ports lint, , dirt and liquid splashes, prevent rust or short-circuit, anti-static and safer. Easily meet your different need, bring much more conveniences. It's easy to use and remove, but it won't fall off. Features - Color: Black - Material: Silicone - Size: 2.80X0.50X0.50cm/1.10X0.20X0.20in - They are perfect for protecting computer ports , liquid and rust. - Help to keep your device working well, fit very tightly and securely, won't loose or fall, can hold on very long. - Easy to install and remove, easy to clean, can be recycled after cleaning and drying. - The perfect solution for protecting computer ports, greatly save your time and efforts. - It has a simple design, but very practical in use, giving you a . Package list: 5 x sets of 7pcs plugs