JIA Inc. Rolling Mortar

I have a number of different mortars. This is the only rolling type I have though. The rolling "pestle" is pretty light weight, and it's hard to put much pressure to break apart tougher spices--also, effect of grinding motion that one can make with a normal mortar is difficult to impossible here. I find it pretty good for fresh herbs, though, especially leafy ones, provided you don't need a really mashed-up final product. I've seen pictures of other rolling mortars where the "pestle" was more a solid wooden wheel, with handles sticking out the axis. That would be far handier than the one that comes with this one, as one could apply some real pressure.Don't get this if it's going to be your only mortar, in other words. But it's good quality, easy to clean, and interesting to show off, if you like mortars.