Bought the sample for testing
This 5 color set is best to comparing, experiment and choice. I was very glad to able to using these film before buying too much size. This size was fit for my mini projector than I thought. Dependent in case, I may keep using this size in production. Looks it was hand-cutted, so you might better to adjust your glass or aclil size bit smaller than A4 if you need to fill all surface.