DowSun 3-Pack Extra Thick Slanted Acrylic Sign Holder (8.5 x 11 Inches) EXTRA THICK - At 3mm, our sign holders are twice as thick as the standard 1.5mm. Theyre built to last years, not days. BUBBLE WRAPPED  We go beyond just the product. We carefully wrap it in protective bubble wrap to prevent scratches or breaking during shipping. PREMIUM ACRYLIC - Impurities in cheap acrylic can cause structural weakness that increase cracking and breakage. Not ours. We use commercial-grade air filtration to keep out dust particles. Our cutting edge, ISO 9001 certified manufacturing facility with precision temperature and humidity control produces the most consistent quality. EXTENDED 90-DAY REFUND GUARANTEE  Were so confident youll like our product that we go above and beyond. If there are any issues, just let us know and we'll give your money back.