The large size of these chain links makes them easier to handle than traditional size links. Flexible 1-1/2" x 2-3/4" links are easy for special needs students to hook together and separate. Use for sorting, counting, patterning, measurement, and even graphing activities. Can also be used to attach toys to cribs, high chairs, buggies, etc. for young children. Set of 60 links in four bright colors come in a handy storage bin.