Material: silicone, plastic. Colour: black. Size: 16 mm/22 mm. Extended service life: this phone dust kit effectively prevents dust deposits on the headphone jack and charging port of your mobile phone, thus extending its life. Safe material: the mobile phone charging port protection is made of high-quality, safe and skin-friendly materials. You can use it without hesitation. Easy to use: simply press the phone dust kit onto the connector or use tweezers. To disassemble, simply take it out with tweezers. Practical dust cover: the mobile phone charging port protection removes dust, lint and dirt from the device housing. Protects the charging port from dust. Versatile: this mobile phone charging port protection is not only suitable for cleaning mobile phones, but also charging ports, computers and other devices.