The Dirt King Child Tricycle is built and rides like no other, heralded by day care centers and parents as "the world's best tricycle!" The Dirt King is virtually indestructible. Hand welded and constructed of heavy duty 14 and 16 gauge steel. The Dirt King Child Tricycle comes equipped with all terrain pneumatic tires mounted on heavy duty steel rims with 5/8 inch steel ball-bearings. The adjustable seat and tilting handle-bars allow the Dirt King Child Tricycle to adapt with your growing youngster for years of thrills and healthy fun and exercise.