A cool educational mineral rock digging kit. Excavate your very own natural crystals. Build and add to your own rock collection, and learn some fun characteristics of different crystals. The crystals included are natural crystals which sizes, colours and colour combination may vary. Approximate sizes range from 15mm to 20mm. Suitable for children aged five and over. Box Contains: 1 x plaster block 1 x digging tool 1 x brush 1 x magnifier 1 x set display case 1 x pouch bag