1. Pull the spring cord 2. Press the front end while pulling up the top 3. Align the hole and put the gem piece 4. Press the transparent cover 5. On the item to be nailed with diamonds, press the press 6. Replace the used diamond piece and continue to use it
About color&size difference According to the light and different computer monitor, the color may be slightly different as pictures. Besides, please allow 1-3cm measurement differ due to manual making. Your understanding and support are highly appreciated.
Email email@example.com if you have anything you do not know about the order.