Some acrylic sheets are designed with different finishes on each side.
For example, you may find acrylic with:
Matte on one side + gloss on the other.
This gives you two different looks from one sheet.
It can be particularly useful when designing layered signs or products where you want to choose between a soft matte appearance and a high-shine finish.
Always check which side you're cutting, engraving or displaying before starting your project.