Lego Transformer Jazz is fully articulated with small tow ball joints and stud friction for increased play-ability! This model fully transforms from vehicle mode to robot mode without part removal. Jazz measures between 5 and 6 inches tall. PLEASE NOTE the LDD instructions are missing 2 different types of brackets on the legs. Part number 99780 must be replaced with part 36840 (which is just half the size) and part 99781 must be replaced with part 36841. Both could be found on bricklink when you place your order.