Product Description PLUS SERIES grips provide the ability to add back-weighting to any putter, to achieve optimum balance. With a proprietary new threaded cap design, players can quickly and easily install a 50g back-weight to instantly change feel and response. The 50g Counter Core weight is sold separately. Diameter: 1. 30"Length: 13. 75"Weight: 95g Core: 0. 580"