Mini Calliper 400 X 150Mm Pk 5

A fun, practical way for children to gather information to record, compare and order measurement. Use the blank, dry-wipe area to aid estimation or to mark non-standard units such as handspans. This easy to use measuring tool makes sometimes otherwise complex, internal and external measurements a breeze for small hands to record. Both centimetres and millimetres are printed clearly along with 10mm blocks.