The varietee™ Adjustable Golf Practice Platform, the ultimate in golf practice equipment, was featured in the 2007 series of ABC Television "New Inventors". Not only can you adjust the slope direction, but you can also adjust the slope itself - from flat right up to 12 degrees. The Platform is 1.65m diameter to suit all standard octagonal driving mats. A great revenue generator for the driving range, or for serious backyard practice.
See Platform detail with pictures and videos.