GoSports Baseball and Softball Bat Weights - 2 Pack Baseball Donuts - 16 oz & 12 oz

DYNAMIC SPEED TRAINING: Includes two weights for a comprehensive training system, one 12 oz and one 16 oz batting donut; Start light to loosen up, go heavier to build strength, then remove weight to swing with improved power INCREASE SWING SPEED: Warm up pre-game or on-deck with added weight to swing harder and faster while batting; Start with the 12 oz weight and build up to the 16 oz for general conditioning, just like major league players BUILD STRENGTH: Can help hitters develop more power behind their swing; No need to carry a heavy bat just to warm up, simply add or remove weight to your bat as needed BASEBALL & SOFTBALL: Great for players of all skill levels; Accommodates most standard size youth and adult bats; Fits bats with a barrel size of 2 1/4 inches to 2 5/8 inches NON-SLIP GRIP: Made from durable steel and coated with PVC for secure use on metal or wood baseball or softball bats; Won't scratch or damage your bat during practice