●Designed for learning math:this counting frame is designed for developing childrens hand&eye coordination ●Construction:this math learing abacus has 10 beads per row and altogether 10 rows,100 beads in total ●Especially for math learning:counting frame is a nice maths Aid Educational Toy ●Safe material and colorful:this abacus has brightly healthy colored beads.The materials are healthy for human ●This abacus can develops childrens brain and hand-eye coordination