More fun than flash cards, this unique handheld puzzles slide open to reveal vowels that complete words. Kids peek inside to self-check their answers. Photos of common objects provide clues and opportunities for focus on beginning, medial and final sounds, and C-V-C sounds. Portable set makes a great activity for car trips, after school and more, includes 20 different words. Set of 10 double-sided cards measures 4.25"L x 6"H each.