This weight kit is the perfect addition to your Odyssey Stroke Lab R-ball or 2-ball putter. It allows you to personalize the feel of your putter and fine-tune it to your specific preferences. The kit includes a variety of weights that can easily be added or removed to change the balance and weight distribution of your putter. Constructed with high-quality materials, these weights are durable and built to last. They are designed specifically for Odyssey putters and will not affect the performance or integrity of your club. Improve your putting accuracy and consistency with this convenient weight kit.Unfortunately, they did not fit my putter.