• Compatible with a wide variety of trailers, including trailers for children and pets. • Quick mounting system to facilitate switching between different bicycles. • Includes safety lock pin for greater stability and security during use. • Made of iron with black enamel coating, resistant and durable. • Type A clutch design, compatible with most bicycles, such as mountain and city bikes. • Package dimensions: 15 x 10 x 4 cm. • Package weight: 331 g.