Wide range of adaptation, simple and convenient to use various devices with RJ45 network port Type: rubber stopper Model: RJ45 Product Grade: Qualified Shape: Material: Silicone Colour:black Material:resin Package Contents: 20 x dust plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 4. Protect the device interface, plug and play, dust-proof, moisture-proof and to prolong the service life of the device 1. High and low temperature resistance 3. Made of silicone material, no damage to the machine, protection 5. The heat- and pressure- precision mold made of environmentally friendly material is firm and does not fall off, and the seams are dust-proof and moisture-proof 2. High toughness and pull resistance