"The GolfWorks Steel Shaft Extensions can be used to extend the finished playing length of any steel shafted club. These 12"" long steel butt extensions feature an 8 1/2"" parallel mid sections that can be cut in the middle to create two 4 1/4"" extensions. Each section has a tapered end to perfectly fit inside the shaft being extended. Each extension has a 1 5/8"" shaft insertions depth and is chrome plated to prevent rusting."