Mepps Aglia Plain Treble Spinner Size 3 Rainbow Trout 1/4 Oz B3 RBT The Mepps Aglia spinner is the original French spinner. It is the World s #1 Lure. More trophy fish have been caught on the Mepps Aglia than any other lure. The Mepps Aglia is extremely popular with fishermen world-wide because it will catch just about any freshwater fish and many species of saltwater fish.