Rawlings | Hitting Jack-IT Bat Weight | Baseball/Fastpitch Softball | Multiple Sizes

Happy with item. Not too heavy and 9lb is enough for practice swing before at bat.

Works nice for a 7 yr old

El contrapeso es muy útil para agarrar velocidad funciona muy bien y es de buena calidad se ajusta muy bien a cualquier tipo y tamaño de bat.

Works well for our 7 year old. He wanted to work on swinging harder (currently using a 27in -10). The 9oz weight is ideal. It’s easy to put on and remove.

This thing is exactly what I was looking for, in that it helps me increase my bat speed, simply by adding strength. Truly though, there are many other ways to add strength/bat speed. One potential drawback, though, is that it can create bad habits, because the added weight can cause you to change your swing to deal with the extra weight in your hands. In my case, it caused me to drop my hands as soon as I started my hands forward. I'm pretty disciplined, I use a tee, and I use video, so I saw it and felt it. I adjusted for it, and now it's easier than ever to avoid letting my hands drop when hitting without the weight. Anyway, if you're going to get this and use it for live BP or hitting off the tee, be careful and monitor your swing. Other things to watch for are casting the hands out, losing balance (forward), and pulling the head and front shoulder out, all resulting from the attempt to keep bat speed up with the extra weight. My biggest challenge was to keep the mechanics, and allow a little slower bat speed while I used the weight.