There are several ways to install the straps: There are several ways to install the straps: 1.The camera’s eyelet bigger than 0.8 mm. 2.Installation cameras rope. The user’s guide is for type 1 (camera’s eyelet is bigger than 0.8 mm). ** Length of the straps** DSLR User's Guide Slide Buckle x2+ Belt x 2+Manual List of Camera with StrapTransformer Slide Buckle x2+ Belt x 2+Manual＋Strap transformerx2