Thank you for stopping by my shop among many others. Regarding the metal fittings, I can change them to screw-back earrings, mask charms (10mm lobster clasp), or stainless steel earrings. If you wish to change them, please let me know in the comments section. If there are no comments, I will send them with hook-type earrings. For bulk purchases, I 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 comments section before purchasing. 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.