Features: Hands-on ability training 18 pieces of puzzles with different colors and patterns, enhancing the observation and hands-on ability of kids. Logic training 100 built-in challenges, from easy to difficult, for kids to work on their logical thinking and intelligence. 2 versions There are 2 versions of product for your choices, standard version and enhanced version, the latter is equipped with more puzzles and different challenges. Quality assurance Made of premium material, durable and environmental, also safe for children's hands. Parents' helper Preventing kids from being addicted to digital devices, good for their mental health and eye-sight. Specifications: Item type: color code Material: ABS Color: colorful Quantity: 1 set Age: 3+ years old Book size: 12.8*8.8cm/5.03*3.46inch(L*W) 11.3*11.3cm/4.44*4.44inch(L*W) Weight: 260g/9.17oz Package: 1*picture book 1*base 18*image building block 1*package box Packing list 1*picture book 1*base 18*image building block 1*package box