These toys are well-made from safe material for durable use, which with smooth surface, will not hurt the hand of your kids. They can let your children learn the gems excavation process, better cultivate hand-on ability, cognitive ability and arouse science interests. It is a wonderful present for them especially for girls. Features -Color:Multi -Material:Gypsum, ore. -Size:10.00X7.50X3.00cm/ 3.93X2.95X1.18inch. - Let your kids know more about geology and archaeology with this unique gemstone digging toy, let them on exploring gemstone. - Made from safe material for durable use, with smooth surface, will not hurt the hand of your kids. - Nice toys to develop the baby’s cognitive ability and hands-on ability, keep the baby from the electronic screen. - Easy to use, use a hammer and to the plaster, use a brush to brush off excess , dig out all the crystals. - It is a wonderful present for kids especially for girls, the gemstones can be made as a bracelet. Package list: 2 x set of Gemstone dig kit(colored fluorite type)