Improve your balance while enjoying a whole new form of exercise with the ExacMe unicycle. The device offers such features as new and improved wheel mounts, and a cushioned seat with scuff-guard protection. More significantly, the unicycle is adjustable both up and down. Other details include cotterless crank arms, full-sized nylon pedals with chromoly spindles, and oversized and sealed bearings that withstand heavy loads. The unicycle comes in 16, 18, 20 and 24-inch sizes. Features: • Cushioned seat with scuff-guard protection for comfort and durability • Cotterless crank arms and full-sized nylon pedals with chromoly spindles • New and improved wheel mounts; sealed bearings withstand heavy loads • Frame: Excellent Manganese Steel, Standard Frame of Unicycle • Pedal: YONG HUA Pedals with Chromoly Spindles, International Quality • Outer Tire: Excellent Skid Proof Tire • Inner Tire: Leakage Protection Butyl tire, No second Inflation for 3 Months • Bearing: Heavy Manganese Steel Mute Bearing • Saddle: Large Saddle with Removable Poly-nylon Guarded Rails • Seat post clamp: Quick Release, Alloy Aluminum • Rim: Extra Thick Alloy Aluminum Rim • Fork: Steel Fork with Powder Coated Finish • Great for both Novices and Professionals, Men and Women • Rational designed according to somatology and movement features