Our customers are usually short stature individuals who are 3 foot tall to 4'6" tall). The next group is from 4'8" to 5'2" tall needing 3 to 6 inches extenders. I have tall customers who weigh from 200 pounds to up to 400 lbs that need pedal extenders. For the very short individuals, the extenders can be adjustable from (8 to 18 inches), taller individuals (2 to 6 adjustable inches).
The SmartCars, Fiat 500s, Kia Soul and the Mini Coopers have very unusual shape gas and brake pedals. A special extender will need to be made for those vehicles. These extenders are custom made for that vehicle, there no returns!
We also specialized in clutch extenders, usually adjustable from 2.5 to 3 inches in length. Those vehicles are usually Mazda Miatas, Jeep Wranglers, Subarus, Hondas Civic, and sport cars. The individuals is usually 4'8" to 5' tall needing the clutch extender.