This is a handmade item. Please understand that handmade items may not be as strong as commercially produced goods. The total length, including the end fittings, is approximately 68cm. The length can be adjusted by sliding the wooden beads. The strap is a suede-like off-white/beige color. If you would like silicone rubber attachments for your glasses, please choose from the three types available and let me know. These are available while supplies last and up to two can be included. Please be sure to read the profile before purchasing, and only purchase if you agree to all the terms and conditions.