- Harper String Bracelets: no more than 3 charms are recommended at a time
- Harper Stretch Bracelets: no more than 5 charms are recommended at a time
- Harper Metal Bracelets: you can fit as many charms as you want at a time
- Harper Necklaces: you can fit as many charms as you want at a time
- Harper Earrings: no more than 1 charm is recommended at a time