This is one of four ROKR kits I have. They are quality-made precision cut parts that can be assembled without glue or tools, however I found that glue in some places and some tools make the assembly easier (see photo). Assemble on a hard surface to ensure the base is completely flat. A small flashlight, magnetic screw driver, needle nose files, seam ripper, etc. are helpful. A magnifying glass is needed to see the orientation of some parts in the instructions. It is VERY important to lubricate moving parts, especially those that slide. I used the wax provided and added Sewer's Aid (silicone oil). The oil enhances the wax lube and the oil is able to reach places that are difficult to wax - such as gear teeth. Check for proper assembly and free movement of moving parts during each step of assembly.