Dinosaur Bones Match and Measure pk 16 Playground_Equipment A tensiometer is a closed

A tensiometer is a closed tube with a special ceramic part in its end

6'1 in length with Alaskan Spruce soundboard

Age 14+760mm

accurate 30cm glass magnifying tube

Comprises open-ended glass tube fitted with two carbon electrodes by means of a rubber stopper

Dinosaur Bones Match and Measure pk 16 Playground_Equipment A tensiometer is a closedCast from a durable and unique mix, these bones are just waiting to be discovered. Bury them in sand, soil or even water, and they will instantly appeal to children's instincts to explore, investigate, sot, collect and measure. Perfect for all those budding palaeontologists! Each bone increases in size by 2cm and can be used to introduce the concept of measurement, doubling and halving.