20" in Colorized Wheel Uni-Cycle Skidproof Unicycle w Stand Cycling Yellow Green Brand new 20-inch Wheel Unicycle with somatological design and top quality Just like surfboards and skimboards on sea, skateboards on ground and wire-walking in the air Not only does it require the trainees' skills, but also it asks for the professional design and quality of the unicycle itself. Sturdy construction fit for Beginners and experience riders, adult exercising, recreational, beginner riders and experience cyclists, both novices and professionals, men and women. Large saddle in unique design for extra comfort & safety; Rational designed according to somatology and movement features.