New White Leather Fuselli Accordion Shoulder Straps Width (6 cm / 2.4 inch) Length (82cm-102cm / 32.3-40.2 inch)

Width: Measured from widest part of lining. 
Length: Measured from the shortest to longest possible adjustment from ends of loops on the longest assembled strap.  Note that the second assembled strap is 5 cm (2 inches) shorter.  The longer strap is for the right arm;  the shorter strap for the left arm.