VIVO Monitor Shelf Solutions: We create affordable solutions to transform your unique workspace. This clamp-on shelf gives your desk an additional tier for increased storage space and ergonomic viewing angles. Please Note: Maximum desk thickness is 1.2' Spacious Surface: Measuring 39.4 x 10.2 x 5.1, this spacious riser supports dual laptop and monitor screen setups with a total weight capacity of 44 lbs. The elegant appearance blends well with virtually any environment