Small geometric pin board: the size is 12*12 cm, the color picture title is 25, and there are 5 blank cards. The focus is on geometric creativity, inserting nails first, and then constructing the shape with rubber bands.
Large pin board: The board size is 21*21 cm, with 19 topics and 4 blank cards. This is also to insert wooden nails, and then pull the rubber band to build the shape. Nail insertion, this nail insertion idea is good, but in practice, it is not very smooth to insert one by one. Children may not be strong enough. Personal advice, this kind of nail insertion is not recommended.
