Triprel Inc 20" Inch Wheel Performance Unicycle - Chrome * Frame : Excellent Manganese Steel, Standard Frame of Unicycle * Crank arms : WHEEL TOP Crank, International Quality * Outer Tire : Excellent Skid Proof Mountain Tire * Inner Tire : Leakage Protection Butyl tire, No second Inflation for 3 Months * Saddle : Large Saddle with Removable Poly-nylon Guarded Rails