Lightweight kids bike features a Space Mecha-inspired design with an integrated sports-car-style wheel rim, smooth streamlined shape, and vibrant colors Magnesium-aluminum alloy frame resists corrosion, withstands wear and tear from regular riding, and is coated with 5 layers of luxury paint for a glossy finish Sealed bearings ensure a friction-free adventure for a smooth and effortless ride; Equipped with 2 dependable disc brakes so your child will have full control and confidence while exploring new horizons Extra-wide 16-inch tires provide stability and traction for an exhilarating ride; 1-piece training wheels allow your child to learn and grow at their own pace; Convenient kickstand makes pit stops and adventures even more enjoyable and hassle-free For kids ages 4 to 7 with a recommended height of 41 to 45 inches (use until 51 inches); Saddle height: 19 to 24 inches; Comes pre-assembled with an instruction manual and complementary tools for a stress-free start to your space exploration