Niveal's Alvin collection of framed alcove tub doors adds elegance and modernity to any bathroom. With 3/16 in. (4 mm) ANSI certified clear tempered glass, an easy glide hidden wheel roller system, and premium anodized aluminum chrome hardware, this tub door boasts exceptional durability and beauty. The design is customizable for right- or left-hand door opening and adjustable from 55 in. to 59 in. in width. Plus, every Niveal alcove tub door comes with a 3-year limited warranty, ensuring a luxurious bathroom experience.