Tour Lock Pro Counter Balance Weight consist of New Improved 2023 Version 10-16grams (SILVER) for set of Irons/Hybrid/Fairway with Tools and Installation manual. The 16gram weight is designed for Golfers with (Average-Fast) Swing Speed. These weights can be installed to any brand of irons, helps with consistency and control. This technology is proven to help Amateur and Professional golfers. Improves swing speed, distance control and accuracy. Grab this Discounted Price for a limited Time Only! Original Price $141 Great Gift!! Immediate Noticeable Effect: 1.) Improves Distance 2.) Smoother Swing flow 3.) Solid Hit 4.) Less Misses/Playable misses 5.) Faster swing speed 6.) Really Good feel/More Confidence 7.) Better Control Shop with Confidence from a Highly Respected Seller!! Please check out my other listings for more cool products!!! Fast and Free Shipping! Satisfaction Guaranteed or your Money Back.