Four setups come out of one carbon steel frame: a parent-pushed trike, a pedal trike, a balance bike once the pedals unbolt, and a sliding bike with the training wheels removed. The push handle climbs through four heights up to 28 in so a tall adult is not stooping on a long walk, and the saddle takes two positions across ages 2 to 4. Steering caps at 135 degrees, wide enough to corner but short of the angle that tips a rider sideways. Non-slip EVA wheels grip driveway concrete, park paths, and playroom floors.