For those who want to easily adjust their balance.
If you want to correct a little more bend or fly high with your current swing, the tools are lead but people can find the right amount of weight to put them on.
The "Balance" is a 5g lead seal per piece, so you can adjust the balance by simply attaching it to the club head for your purpose.
Comes in a pack of 4, so you can add multiple pieces to adjust the balance to your own preference.