Mongoose Pizazz Girls' Bike (16-Inch Wheels) Colorful blue and purple bike with 16-inch knobby wheels and pink flower decals for beginning riders Single speed bike includes removable training wheels Rear coaster brake makes stopping easy for new riders; front caliper brake for advanced riders Handlebar pad, removable backpack, enclosed chain guard, quick-release adjustable seat post Recommended for ages 3 to 6; assembly required