Word Builder from Twisterz Toys. Hand held and battery-free, Word Builder helps develop spelling and language skills by challenging children to build new words. Simply twist the rings in order to create different letter combinations. With the help of their caregivers, children learn how to use consonants and vowels to build words between two and six letters long. Word Builder inspires early developmental skills including: --Spelling --Language --Motor Skills The rings are easily removed and rearranged, creating thousands of possibilities! All Twisterz products meet or exceed US safety testing standards, and are produced using non-toxic materials.