I bought these for a 95 year old friend of mine. She knew exactly what she wanted telling me the size #19. When I showed her the sack of rubber bands she was delighted! She loves them as she said they hold her papers/cards without bending them One happy "young lady!"
Bought these to do fabric dyeing and they are an odd size for what I'm working with so mostly either too small or too large to work with easily. Also after they'd been used once they perish while wrapping another piece of fabric so I guess they don't like the MX dyes. Best use them for actual office stuff...