A-Z Puzzles Feel letter shapes and learn sequence with these classic Lauri alphabet puzzles. And now, there's a druable plastic storage tray and a removable picture pattern for kids to match letters - just remove the pattern to vary the challenge. With Crepe Rubber's unique textures, children learn to correctly choose between "b" and "d" to follow "a" in the puzzle frame. Letters are 2" tall with 11-1/2" square frames.