Smash your way into a CKN mission rock-full of fun surprises with the Rock ‘n Smash Builder Set! Watch your little one use the smasher tool to break the rock into pieces! The Rock ‘n Smash will burst open with tons of awesome goodies for your child to enjoy! Play with fun compounds like slime, then build an incredible robot for brothers, Calvin and Kaison figures to battle in! When they’re all done saving the world, put the rock back together to start the smashing fun all over again!