Bezerk RC option part for the Yokomo YZ-4 SF 4wd offroad buggy. Made from 3.0mm carbon fiber, this holder offers a forward and rearward battery placement by turning it around. A 2.6mm thick o-ring secures the battery in place and offers some flex to the chassis unlike a strap over the top of the battery. Kit comes with two o-rings. Like all Bezerk parts it can be customised to suit your needs.