Review on 25 Pieces of uxcell A13060300ux0624JP Dock Cover - Soft Plastic, Dustproof, Micro USB Port, Anti Dust Cover - Pack of 25 by James Martin

Purchased to connect the USB port on the Bluetooth earphone charging case. The charging case with the earbuds is about the size of a tick tock, so I always have it in my pocket along with my phone. This results in tons of pocket lint getting into the USB port. These little plugs easily solve the problem. Also, you get a whole bunch of them, which is good because they're tiny and very easy to lose. They fit well and stay in place. Made from some type of rubberized flexible plastic so they feel very secure when squeezed. I haven't had one yet, even after carrying a charger in my pocket every day for months. Unplug to charge the charger and the connection is sparkling clean.