【Set of 4, 18.66 X 5.41" 8mm Thickness (0.315")】 Crafted from highly durable tempered glass with a thickness of 0.3 inches (8 mm), these glass shelves are clear strong
【Dependable Safety】 Boasting a resilient construction, the heavy-duty glass boards feature gentle grind edges and corners
【Specifications】 Set of four panels weighs 11 pounds
【Tempered Glass】 Glass are tempered. Safe to use in most applications
【Assembly Video】Video Instructions link: https://youtu.be/_JGLyRpVm44. You can also search "997G Glass 4PK 18 66x5 41 inches tempered glass shelves panels fixturedisplays" on youtube to locate the video. You can also download video by following this link: http://www.fixturedisplays.com/video/997G Glass.AVI