SuperStroke CounterCore Weight By weighting the end, it creates a counter-balance effect, leading to a pendulum-like stable stroke. I bought this for stock, but I'm selling it because I don't need it after changing putters. It has been opened, but it is unused. Wrench included Weight: 25g (Blue) Please note that it may be sold out as it is also listed on other sites. No returns or exchanges, please.