The bottom plate protective is made of high quality plastic material,durable for long time use.Use this bottom plate protective can avoid damage.in the bump of the steps or the bad road conditions,the high-strength cement road,gravel roadAlthough the sctooer bottom cover won't let any water into,you can install an additional ring for extra protection.Design as bottom plate size which is consistent,perfect fit Xiaomi m365 pro bottom plate.Easy To Install,just ear off the protective paper and paste it to the Xiaomi m365pro bottom plateModel Number:for M365 proFeatures:waterproofcolour:BlackMaterial:ABSsize: 55 x 11 x 3cmPackage Contents:1 x battery compartment cover(without Screws)1 x battery waterproof ringOnly the above package content, other products are not included.Note: Light shooting 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.