Thank you for viewing! This is a handmade item. It can be attached to bags, smartphones, sticker books, etc. I have checked the strength by pulling on it, but it may break if pulled too hard. I make them carefully, but the metal fittings and beads may have initial scratches or color unevenness, so please understand. This is made by an amateur. If you understand this, please consider purchasing. I will change it to a lobster clasp for free. If you would like this, please comment. #BeadStrap #BeadKeychain #Handmade