As of January 1, 2014, it is mandatory that all unbraked trailers with a maximum permitted weight of 750 kg have an auxiliary hitch. So make sure you are safe on the road with this auxiliary coupling. You attach it easily to your tow bar with the two included bolts. Specifications: Color: black Material: steel Weight: 600 grams Dimensions packaging: 13 x 6 x 4 cm (L x W x D)