Just the plastic sheet that you put over the rubber to protect it when you are not using it. They are not essential. You can use any plastic or put your bat in a plastic bag.
Ji-Soo Woo commented...
on the 16-Dec-2011 07:56:12 PM
I use a cutout from an overhead transparency. Are they mainly useful to protect the tackiness of tacky rubbers? I find it's hard to keep these stuck on to rubbers if they are non-tacky.
Claus Hamacher commented...
on the 16-Dec-2011 09:54:24 PM
One thing that is important to remember is to clean your bat before putting on the rubber sheet. Otherwise it will cause more harm than benefit.
Alois Rosario from PingSkills said...
on the 18-Dec-2011 01:22:28 PM
Ji-Soo if you scrape the rubber with the plastic on it over the edge of the table it helps to keep it stuck to your rubber.
