The Stainless Gutta External Corner fits seamlessly with other components to guarantee a strong and stable gutter around the corners of your roof. Just as a strong gutter is vital to the drainage system’s success, it is also crucial to make sure the network is secure at its corners. That is why we highly recommend Stainless Gutta’s resolute external corners. Stainless Gutta Standard Box Dimensions Width: 90mmHeight: 65mm Please note: One joint must be ordered for each length of gutter, gutter section and corner.