-The number of puzzles in each set–there are 12 piece Herbivorous dinosaur, 18 piece Pterosaur, 26 piece Tyrannosaurus and 38 piece Canglong. From 12 to 38, the four difficulty levels can meet the needs of toddler of different ages. After completing the four difficulty pictures,they can also form a complete picture to cultivate children’s thinking ability. 1. Puzzles are the perfect gift for children over 3 years old. From 12 to 38 pieces, the four difficulty levels can meet the needs of toddler of different ages. After completing the four difficulty pictures,they can also form a complete picture to cultivate children’s thinking ability. 2. Great early childhood learning educational toys. Family education must be there. 3. Puzzle games are a great way for kids to have fun while exercising, cognitive and emotional skills. 4. Very interesting and the price is very cheap. Do not hesitate. Add it to your cart now. 5.100% Happiness Promise: If you find that the toy is different than expected, we will provide a 30-day 100% money back promise for our products. Package includes: Wooden puzzle toy set (including 4 puzzles and 1 storage box) Specifications: Jigsaw – (length * width) about 28.6 * 22.6cm / 11.3 * 8.9 inches Storage box – (L * W * H) about 45.8*17.2*4.2cm /18.03*6.9*1.6in