Frame: Excellent Manganese Steel,Standard Frame of Unicycle.Crank Arms: WHEEL TOP Crank,International Quality.Pedal: YONG HUA Pedals with Chromoly Spindles,International Quality. Weight Limit : 154 lbs Outer Tire: Excelletn Skid Proof Mountain 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. To keep in mind: Novices should ride under the instructions or accompany of your tutors for safety.And the best place for your training is a back deck or a baseball field with a chain-link fence. Pick a grassy area with solid, flat dirt and you can hold onto the fence.