Thank you for stopping by my shop among many others. Regarding the metal fittings, I can change them to mask charms (10mm lobster clasp) or stainless steel earrings. If you wish to change them, please let me know in the comment section. If there are no comments, I will send them with hook-type earrings. For bulk purchases, I will offer a discount of 50 yen per item for the second item and subsequent items. If you wish to make a bulk purchase, please let me know in the comment section before purchasing. The items will be shipped via regular mail, wrapped in bubble wrap. Please refrain from purchasing if you have metal allergies. Please understand that these are handmade items by a beginner, not mass-produced products, before purchasing.