Your age is suitable for 5-8 flying cars. Level 5 rotating accessories are large, and the overall difficulty is average. Level 6 has the most lines and materials in all levels, with high line density, but the difficulty is average. Level 7 has three lifting platforms, and the loop line of 10 is spectacular, and other lines are not difficult. The 8-level lifting platform is 60CM, and the five elements are more difficult.

My ball number is: 1 14854 10 There are many DIY roller coaster pictures in the space.