The lap desk measures 17.75 x 13.75 inches, and it's designed to fit laptops up to 15.6 inches. The bottom cushion is available in various patterns and designs.

A lap desk can be made of materials such as wood, plastic, or metal, and integrate various additional features like extra USB ports and cable management tools, among others.

Walmart's bestselling $40 lap desk is on sale for just $18, and shoppers say it's 'so convenient' Story by Alex James Kane • 5d. TheStreet aims to feature only the best products and services.