Special edition Mega Bloks (Mega Blocks) Bundle of ABC spell and 123 Count blocks. From the Manufacturer: What’s 1+1Propel your little learner’s math skills with Build ‘n Learn 1-2-3 Count! First Builders from Mega Bloks. These big, colorful blocks are the perfect tools to teach your child basic counting skills. As your little one develops, introduce the addition and subtraction blocks for more advanced learning. Educational playtime makes learning fun and prepares your child for kindergarten. Build, play, and learn with numbers and letters to count and stack. Build ‘n Learn ABC Spell! First Builders from Mega Bloks are the perfect tools for educational, imaginative play. With 52 letters, these big, vibrant blocks support your child’s language development, encouraging letter recognition and basic spelling skills. When playtime is over, store the set in our PVC-free tote bags. Ideal for ages one to five. Note that the letters, numbers and pictures are supplied as stickers and you can apply them to the blocks as you desire. Stickers may differ slightly from items pictured in the promotional images due to different manufacturing runs. Buyers have stated that some letters are in lowercase.