Question about Beeztees scratching board

Scratching board arrived today. Completely damaged and also with a mysterious "grass package"...?????

should be catnip, I think. As a scent attractant. But how exactly one should use this is beyond me. Besides, our cats are not interested in catnip.

I asked myself the same question and tried it out. But there is no cat grass or other attractant in it. Unfortunately, I couldn't solve the riddle. I used it as a plant fertiliser.