TTS - Number Pebbles Engraved Stones - Sums - 50pcs

Tactile pebbles cast from a resin and stone mix. Each one is engraved and coloured. Number set includes two of numbers 0-10. Sum building set contains two each of numbers 0-20, +,-, = and one each of x and ÷. Pebbles measure between 3-4.5cm. Jumbo pebbles measure between 6-7cm.