The MX70-100 EVO Conversion Kit allows owners of the MX70 EVO Dumbbells to upgrade their Dumbbell set. This conversion kit consists of 12 EVO 5 lbs weight plates. Simply remove the cradle spacers in your MX70 Dumbbell Cradles and Insert 3 plates into the weight stack on each dumbbell cradle end. Replace your handle and start Lifting.