Build race and crash kinetic sand build crash em cars is an all new building formula that really holds its shaper now you can mould any shape and pick it up while you playr customise your cars with moulded engines spoilers bumpers and morer mix the two colours of kinetic sand build together to create a whole new colour to build with toor the car chassis have real working wheels so you can get racing right awayr open up the playset into a double sided racing stadium and use the included