Astonishing Bright Orange 16 Inch In 16" Mountain Bike Wheel Frame Unicycle Cycling Bike With Comfortable Release Saddle Seat Saddle: Large Saddle with Removable Poly-nylon Guarded Rails Cotterless steel crank Extra Thick Alloy Aluminum Rim Quick release alloy aluminum lock for height adjustment Rational designed according to somatology and movement features Large saddle in unique design for extra comfort & safety