These Wire bracelets are strung on Beadalon plastic coated multi-strand wire.

Memory wire bracelets don't need clasps. You just unwrap them a bit and slide them on.

Stretch bracelets are made with very strong Gossamer Floss and Stretch Magic. These are real nice for people who have a hard time with clasps.

The woven bracelets are made on a loom. I use strong, non-stretch nylon thread. Most of my bracelets come with a strong magnetic clasp which makes putting the bracelets on a snap even for older people with arthritic hands. These magnets are strong and won't come apart easily. The best way to release them is to separate the pieces with your fingernail so as not to break the thread holding them on. They also come with a safety chain just in case your bracelet gets caught on something.