MATERIAL: Stainless Steel & Rubber TYPE: Rotating 6 wheels SIZE: 105 cm *35 cm COLORS: Blue,Black & Silver FEATURES: Waterproof and anti-rust Durable for long and easy to maintain The triangle-shaped bearing wheels make it more flexible and durable for less bumping. Easy to fold for a convenient carry and store save more space and strength Perfect for carrying heavy things especially when climbing the stairs