Share 'Rattler'

I've heard alot about the Rattler on this website.. but I've never seen it in the store or noticed anyone throwing one..... so fill me in..what is this disc like..  If it is in your bag.. tell me what shots you use it for..I've heard alot of people saying they use it to get out of trouble...well do you use it when you aren't in trouble? long putts,, short putts,, approach shots....just wondering.…