1mm - This is the thickest diameter of StretchMagic™ elastic cord.
Stretch Magic™ is an extremely versatile, clear, stretchy stringing material with a memory. It's easy to use, there is no needle necessary, it doesn't fray at the ends and it holds a knot well. Stretch Magic™ is soft and flexible, yet strong and ultraviolet resistant. Since it's transparent it matches any bead color.
Clear 1mm diameter (.039in) 25 meter spool Latex Free. 1 meter = 39.37 inches.