Any one ever use one of these to roll?

[youtube]http://www.youtube.com/watch?v=QoMAkB8EY4A[/youtube]


Talking to the users who know what this is and have used one or know a bit about them
Are they good? and How good do they roll I'm thinking about getting one tomorrow from ebay so yea If I could get some feed back that would be nice

Actually my friend has one of those and rolls PERFECT joints with them.

Saint said:

Actually my friend has one of those and rolls PERFECT joints with them.

Click to expand...

Thanks
Do you know what he got his for?
I'm looking at one right now and its like $15