Sorrento Series Standard 180 Degree Double Door Kit utilizes a modern top roller fitting that features four rollers on each door for ease of sliding. This quiet, smooth sliding system is made of high-quality stainless steel, thus ensuring easy opening and closing of the door. The Sorreto Series Sliding Shower Door System is versatile in design, able to adapt to full standing showers or above bathtubs. A 90 Degree Accessory Kit may be purchased separately for use with 90-degree return panels. Available in either polished stainless steel, brushed stainless steel, or matte black. The Sorrento Sliding System will work with 3/8" or 5/16" (10 or 8 mm) thick tempered glass (not included).