Martini Step Up Tees are a full 3-1/4 inches tall with stop at 1.75 inches, perfect for today's larger drivers. Martini Step Up Tees are made from a proprietary polymer resin blend, to last a lot longer than old-fashioned wooden tees. Independent laboratory testing proves that Martini Tees give you drives that are both farther and a straighter, compared to wooden tees. Made in the USA.