The material is PLA. Two keychain sizes are available. A square lithophane at 40 millimeters or 50 millimeters large. When held up to a bright light source, the picture appears.
Your picture should be a square, just like the example lithophane. It should also have a good amount of contrast. If it looks good in black and white, it would be a good picture for a lithophane.
Keychain lithophanes will have a small border around the picture, as shown in the examples.
Please keep the file under 4mb. Once you have a picture with good contrast, cropped to a square, send your picture to email@example.com. Please make sure you add me to your safe senders list!
This is a custom product. Production time can vary. Most orders will be shipped within 3 business days.