〖Compatible model〗YwonShne Dust port plug for COROS PACE 4 / APEX 4(42mm/46mm) / COROS NOMAD / COROS PACE PRO / COROS PACE 3/ COROS PACE 2 / COROS VERTIX / COROS VERTIX 2 / COROS APEX 2 PRO smartwatch band strap wristband. 〖Material〗 Environmentally friendly silica gel. soft, no cracking,wear resistance, long service life, no skin irritation. 〖Easy to install〗The plugs designed to fit and seal port tightly. Easy to install and convenient to remove from it as well. 〖Protect your watch〗The dust plug can prevent your COROS APEX 4(42mm/46mm) / NOMAD / PACE PRO / PACE 3 / PACE 2 / VERTIX / VERTIX 2 / APEX 2 PRO from being affected by the dust and sweat, therefore, they also can protect the inner parts of your watch to some degree. We take responsibility for COROS APEX 4(42mm/46mm) / NOMAD / PACE PRO / PACE 4 / PACE 3 / PACE 2 / VERTIX / VERTIX 2 / APEX 2 PRO charger port protector silicone. If any questions or problems by using, please feel free to contact us,we will try our best to help you. Compatible with COROS APEX 4(42mm/46mm) / NOMAD / PACE 4 / PACE Pro / PACE 3 / PACE 2 / VERTIX 2S / APEX 2 PRO Dust Cover Charger Port Protector Dustproof Case Anti Dust Accessories Black