Specification: Size: Fiberglass: multi-size mixed Clips: about 30-31mm How to do fibernails : Step 1: Prepare your nail,apply base coat and fiberglass gently. Step 2: make the sealing of fiber above and below with UV builder gel Step 3: Cure nails under UV/LED lamp for 1-2mins.After few seconds, apply pinching clips to maintain the curvature Step 4: Remove pinching clips from nail. Step 5: Technical sanding, this step is very important, from here the nail is already in the natural format; Step 6: Apply no wipe top coat which leaves the nail always shiny, and helps in the durability of the nail! Package includes: 6Pcs/set*Nail Extension Kit (1 Bag fibre glass & 5pcs clips)