Build, Race and Crash with Kinetic Sand Build! Kinetic Sand Build is an all-new building formula that really holds its shape! Now you can mold any shape and pick it up while you play! The Crash ‘em Cars playset includes 20 pieces and 2 colors of Kinetic Sand Build for real racing action. Customize your cars with molded Engines, Spoilers, Bumpers and more. Mix the two colors of Kinetic Sand Build together to create a whole new color to build with too.