Things to bang and race - what more could a little boy want? Wacky Racers is this and so much more. Place the racing drivers at the top of the start line, make sure their cars are lined up beneath and BANG.Bash them through the hole, into their cars, and watch as they speed off.Brilliant fun.The ramps can then be folded up with the cars and balls inside for storage. Developmental Benefits: Promotes muscle development, improves attention and encourages co-operation and turn taking. Suitable for ages 18 mths+. No batteries required.