Our beautiful Pounamu(Greenstone) are sourced from Aotearoa and originate from both North and South Islands. The size for the Toki is 6cm long and 2cm wide and 10g in weight. The size for Heart is 3cm long and 3cm wide and 10g in weight. The size for the Poutama is 6cm long and 1cm wide and 10g in weight. All 3 pieces are perfect for our Tamariki from 3 years old to 10 years old (but it is a recommendation not a given)