Larsen Maxi Learn to count jigsaw puzzle With Larsen you learn all kinds of skills while you are puzzling. Put all the numbers in order from one to twenty. This way you solve this puzzle by thinking very cleverly. You place the pieces on a puzzle board, which makes it easy to move or frame your creation. Specifications: Color: multicolor Gender: junior Material: cardboard Cardboard thickness: 4.4 mm Dimensions: 36.5 x 28.5 cm (L x W) Number of pieces: 20 Age: from 3 years