PACKAGE CONTENT - One pack includes: 1 piece ear piercing gun + 1 built-in earring + 1 disinfecting cotton pad. 8 packs in total. Please note: earring studs are either black or crystal white due to different production batches. GREAT QUALITY - Crafted with high-quality, safe metal materials. Stud material is cubic zirconia and surgical steel. Will not cause infection after ear piercing. Individually packed and sterilized to meet standard requirements. HOW TO USE - Disinfect the ear and earring stud with the alcohol pad, mark the desired piercing location, hold the ear piercing tool and align it with the mark, press firmly until the needle seat detaches, then remove the piercing tool. Do not remove the earring immediately after piercing. UNIQUE DESIGN - Manufactured by a professional medical device producer to help prevent cross-contamination and inflammation during ear piercing. Each unit features a self-destructing ear-piercing gun with a built-in earring stud. WIDE APPLICATION - Suitable for both professional and home use. Note: This is a self-destructing, single-use kit. Do not attempt to test or press the device before use.