According to Kelley and also stated by Alex Pang, Kelley voluntary the first mousepad a year later, in 1969.

Modern mousepads are extensively Mousepads trumped-up of lesser density rubber composites (open cell styrene, butadiene rubber or open cell SBR) with fabric bonded to the upper surface. However, many other types of material have been used, including fabric, plastics, recycled rubber tires, silicone rubber, leather, glass, cork, wood, aluminum, grain and stainless steel. High-quality gaming mats are usually made from plastic or high-tech fibers.