• Natural stone excavating :teachers can use these stones to let know more about stones, educational
• Stone excavating :this set of is made of , which is safe for to play, digging
• Mineral stone excavating :suitable as , amateur collection, good present, scenario decoration or to play and appreciate,mineral stone digging
• Educational digging :as parent- interactive , it can cultivate the feelings between and their parents,stone collection
• Stone digging :these help stimulate interest in learning and curiosity, excavating