DescriptionPractical and valuable are all can give you by our laptop dust plug. It is made of high-quality silicone, which is durable and can be used for a long time. Prevent the external interface of the computer of the motherboard from moisture caused by oxidation, prevent the interface into dust or foreign matter.Features- Color: Black - Material: Silicone - Size: About1.00X1.00X0.50cm/ 0.39X0.39X0.20inch- Give your computer protection from dust and keep earphone jack of your ports clean all the time. - Soft, environmental protection, high temperature resistance, no deformation after long-term use. - You can present these practical laptop charging ports stoppers to your friends, they will like them. - Prevent the external interface of the computer and the idle interface of the motherboard from moisture-induced oxidation. - It has an excellent craftsmanship, which is not easy to rust and have a function of anti-falling.