These beautiful ceramic puzzle pieces have been high fired from premium clay with a frost and scratch resistance glaze so they can be used inside and outside all year round. They are twice fired individually so that the edges are slightly cantered and smooth. Each edge varies from 0.4mm to as long as 2cm with a 4mm thickness. 100g = ±90 pieces・500g = ±450 pieces・1m² = ±5kg.