Acrylic keychain file requirements

Please Upload PSD/PNG/PDF/AI file. Please providing CMYK colour. Need 300 resolution, 1000 pixels or more.
The best file to upload is PNG transparent background or PSD format.
Warm Tips ： ①Our option for the same design on both sides means that the back side will be mirrored (if you don't want to use the mirror design on the back side, please provide the front and back side and choose the option for a different design on both sides)
②Different design for double side, please separate the layer.
③If your design with semi-transparent part, please separate your design's semi-transparent art from your artwork as an individual layer in PSD file, and name it.
④Charm size should include charms border and hole and depends on the longest edge, not only the printing design size.