The stock plastic piece secures the battery firmly in the compartment.

100% Brand New, High QualityEasy To InstallFitment: For Sur-Ron Surron Light Bee electric off-road motorcycleInstruction of Installation is NOT IncludedColour: black material: ABS plasticPackage Contents:2 x Battery limit blockOnly 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.