Discover the Trefl Prime Uft puzzle consisting of an impressive 13,500 pieces! Trefl Prime Uft Puzzle will delight every puzzle fan! What makes them different? The use of unique Unlimited Fit Technology, the thickest puzzle board on the market and a special, irregular shape of the elements! You can move and turn the puzzle without worrying that they will fall apart. You can combine any pictures from the Prime Uft series, with the same amount of elements, into one large composition. Puzzles will make a perfect gift for birthdays or Christmas. Trefl Prime Uft Puzzle elements, ideal for puzzle fans, this puzzle has special irregular shapes, made of the thickest cardboard! You can move them, rotate them, and combine them with other puzzles from the Prime Uft series, in the same size, into one big collage! Great memory training, development of manual skills, exercise of concentration, patience and perceptiveness. A unique gift for puzzle enthusiasts, adults and children over 12 years old.