Product details:

Practice the alphabet one block at a time! (Larger, thicker and sturdier than competitors Clear, durable finish for years of play Stands up and stacks evenly Use with our Unit Blocks or Number Unit Blocks (sold separately) Blocks are based on standard unit 1-1/4" measurement 6 colors: blue, green, orange, purple, red and yellow 5"L X 1-1/4"W x 5"H Ages 2 years and up) - Discount School Supply Item # ALPHABLK