Need info on Pro-Ject anti-skate weight

I have a Mag-Lev turntable with a Pro-Ject Carbon Arm. My anti-skate weight has been lost. Can someone possibly weigh their Project anti-skate weight in grams, and maybe I can substitute something else that weighs the same? Or if someone has an extra lying around, I would love to procure one.

 Thanks;

; Tim