A bubble more than a meter long. That is the first thing this 4M kit teaches a five year old to do, and it is why the box promises loads of bubble tricks. 4M's own pitch for KidzLabs Bubble Science is a giant bubble that stretches past a meter, a bubble you can freeze so it lasts for hours, and a close look at why bubbles take the shapes they take.

The yellow frames are the clever part. Dip the cube frame and a square bubble forms inside it. Dip the pyramid and the film pulls itself into a shape no ordinary wand could blow. The star and ring wands, the straws and the tray handle the everyday tricks, and the bottle of bubble solution gets things started the moment the box is open. Recipes for mixing your own solution are in the kit, so the fun does not end when the bottle does.

4M prints FOR AGES 5+ on the carton. One sunny afternoon, one back porch, and the whole street will be lining up for a turn.