It is 3x4 1/2 inches.There is also a larger one 3x5 I think.I found out about them over on Bladeforums

I really like mine.Holds longer things than an altiods tin and bends so it lays flater and is way more comfortable in a pants pocket.

At work I carry a sak,small light,money,pen and lighter.I hated having them loose in my pocket,this is great everything together in a well made nice looking "wallet".