Bike USA Stabilizer Wheels are designed to balance your bike to let you focus on riding! The Stabilizer Wheel Kit is perfect for individuals who have trouble balancing a two-wheel bicycle without any assistance. They are the perfect solution if balance assistance is all that is needed. Independent riding can be achieved with the Stabilizer Wheel Kit, a simple add-on to most bicycles. The Stabilizer Wheels can be easily removed once balance improves. The wheel kits are available in two sizes Junior Stabalizer Wheel Kit with 12"tires and the Adult Stabalizer Wheel Kit with 16" tires.