Optional parts for INFERNO MP10e. Battery spacer for short LiPo batteries. It is getting popular to use the shorty LiPo batteries to 1/8 EP Buggy due to the improved performance. The battery can be changed the installing position in the battery holder to adjust a center of gravity and balance as well as making weight reduction. That are advantage to use with the shorty LiPo battery. When use the shorty battery to MP10e, it has same effect for car. It can also be used with vintage Scorpion, Beetle and Fazer series.