1.Made of high quality foam material, for long time use. 2.Waterproof ring for M365 battery cover. 3.Although the cover 't let any water in,you can install an additional ring for extra protection. 4.Easy to install and use. 5.Suitable for M365 electric scooter bottom battery cover. Voltage:36V Model Number:waterproof ring is personalized:Yes Name:For electric scooter M365 battery compartment bottom cover waterproof ring Length:50 cm Frames and display items weight:10g How to use:Remove the yellow paper and all over the battery compartment cover. Colour:Black Material:foam cotton Package Contents: 1* Waterproof Ring Only the above package content, other products are not included. Note: Light 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.