TRAXXAS X-MAXX V2 ALUMINUM BATTERY TRAYS THESE TRAYS REPLACE THE BATTERY HOLD DOWN BAR AND GO INSIDE THE STOCK BATTERY COMPARTMENT ALLOWING USE OF LARGER BATTERY PACKS. BATTERY STRAPS WILL HOLD IN MOST BATTERIES. KIT INCLUDES BUTTON HEAD SCREWS THAT ARE PUT THROUGH THE BOTTOM OF THE CHASSIS SO THAT NOTHING IS HANGING DOWN LIKE SOME KITS TO GET CAUGHT ON ITEMS WHILE RUNNING *** INCLUDED WITH ITEM** 2 - BATTERY TRAYS 2 - BATTERY STRAPS MISC HARDWARE *** NOTES*** SOME DRILLING AND MODIFICATION IS NECESSARY TO ATTACH TRAY SHOWN INSTALLED ON TRAXXAS X-MAXX WITH OTHER HOP UPS, NOT INCLUDED, DOES NOT INCLUDE X-MAXX SHOWN IN CARBON FIBER INSTALLED ON X-MAXX FOR DEMONSTRATION PURPOSES MADE IN USA