About This 【ROKR PUZZLE】A steampunk artwork to be built with your own hands! Twist the spring, the wooden motorcycle model can run up to 7~10 feets. Encouraging you for true cruising with maximum enthusiastic! 【BASED ON REAL MOTORCYCLE】A classic cruiser with bold style and no equal. It has an aerodynamic windshield, metal components and large-capacity rear backpacks. A vivid case of learning mechanics. 【HOURS OF FUN AND LEARNING】Great sensory stimulation toy gifts and STEAM & STEM puzzle gifts for adults and teens. 【A TRANSFORMATIONAL GIFT】Gifts that require participation will be more impressive.We offer a detailed how-to booklet. It will be accessible even for beginners. 【QUAILTY THROUGHOUT】All pieces are laser-cut and the error is less than 1/5000 inch. All the wooden parts are made from high latitude selected basswoods without toxins and can fit together easily.