Never Flat 'Fat Tires' make the 4-seater 'Fat Tire' Bye-Bye Buggy® easy to push, even on gravel. 'Fat Tires' tested for 1 million revolutions with no wear on tires. 360° pivoting front wheels for easy maneuvering, easy to fasten seat belts, and terraced seating so all children can see. Fits through doorways. Includes spokeless steel wheels for safety, and a built in storage compartment. Each seat holds a child up to 40 lbs./40'' tall. Ships fully assembled. 3 yr warranty.