Morphun Junior product ranges account for some of their bestselling products and come in a number of variations. With Junior pieces, 2D and 3D sets can be made, thanks to the side-joining squares and triangles. All small joiners are integrated into the bricks for ease of use. The range is recommended for ages of 3 to 6, but will challenge children up to the age of 10, and all Junior Starter sets are safe in play areas also used by children under three years. A large range of instructions with up to six levels of difficulty can be downloaded. These instructions range from easy to follow instruction sheets with printed full size models to place the bricks on, to more difficult 3D shapes. All sets have wheels and sets with over 500 pieces have additional more challenging pieces and instructions.