Gravitrax Accessories Ball Box

This set includes more balls for even more action on the ball court and smart storage boxes for the existing GraviTrax balls.The Accessory Ball Box is a must-have for all GraviTraxers! The four boxes have a cool design and are made of the GraviTrax height blocks in the colors green, grey and white. Two of the boxes contain a total of 12 silver and colorful GraviTrax balls to get the ball track moving. The other two boxes serve as an ideal storage option for existing balls.