Lets you check all kinds of numbers on tf2 items and has nice colors too.
http://stats.tf/" onclick="window.open(this.href);return false;
Mann Co. Supply Crate Key
- Out of 1,825,652 inventories, 211,199 copies of this item exist. (11.57%)
The Proof of Purchase
- Out of 1,825,652 inventories, 487,575 copies of this item exist. (26.71%)
213,641 (43.82%) are equipped.