Parents whose children are nuts for toy cars, diggers and lorries may sometimes despair of trying to keep their nursery eco-friendly: after all, so many toy vehicles are made halfway across the world, fabricated from materials you really don't want to think about, and tossed away as soon as a wheel comes loose - which it inevitably will.

Welcome, then, to the Sprig Discovery range. These hard-wearing toys will last through some pretty heavy-duty play; plus they're made, in Colorado, from a bio-composite material that utilises recycled wood and reclaimed plastic. No batteries here, either - action is all sparked by the natural kinetic energy of your child's play.

The handle you see above can be removed, making it suitable to last your kid from the toddler stage and many years beyond. A range of figures can also be purchased, which trigger further sounds and lights. This is one range that looks well worth exploring.

Available from stores worldwide, including Amazon .