I am looking at a picture of "The Paddle" holster in Dillon Precision's "the Blue Press" catalogue which just came in the mail. There is a model listed for Ruger 2 1/4" SP-101, which I have; so I'm interested. BUT, I have no idea how a paddle holster works, and I cannot tell from looking at the picture. Is it a belt holster? A pocket holster? Any and all explanations, recommendations, etc., will be greatly appreciated.