Golf Shop: GOLFSMITH Hosel Port Weights 6 Grams 10 Pack

"The cleanest, most professional method available for adding and customizing swing weights in golf clubs. Inside the hostel and below the shaft bore of most Golfsmith clubhead designs, an additional, slightly narrower cavity is drilled out leaving a void in the hostel that can be filled with a specially designed weight plug ranging in weight from 2.5 to 9 grams. These weight plugs can increase swing weight by up to 4.5 points."