Interstar products feature vibrantly colored linking rings that are easy to hold and connect. Breaking away from traditional building blocks, Interstar Rings inspires and encourages young, artistic and creative imaginations. Also helps to develop eye-hand co-ordination and logical thinking skills. With interstar construction sets, your little kids will stay entertained for hours of fun active play. Simply open the storage box and start building away - there's no right or wrong way to do it as your child can form endless creations.