Features: High elasticity, shock absorption and anti-fall, rebound instantly when it hits the bottom, without hurting the real machine. It can be washed and used for a long for time as new without fading or yellowing. The material is full, the thickness is moderate, the fit for protection, the height is consistent, the anti-drop performance is for stronger. The protective cover is made of high-strength silicone material, and the surface is sprayed with a skin-friendly for touch oil, which is delicate and silky, non-sticking to fingerprints, non-sticking to dust, and resistant to dirt. There is no need to take off the cover, and it can be charged. Specifications: Material:Silica Gel Size: Approx. 8x5x3.5cm/3.14x1.96x1.37inch Color: Black/Blue/Red/Purple for WF 1000XM4 Package Includes: 1x Earphone Protective Sleeve note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.