MB-750 "Wolf" Traps 3/8 O.S. Finally a coilspring trap that will stand up to abuse by either wolf or cougar that you can actually afford to buy. The MB-750 "Wolf" has the same heavy frame and jaws as the MB-750 Beaver plus heavy music wire springs and an extra heavy duty wolf swivel coming off the D-ring base plate. Offset jaws (your choice of 1/4" or 3/8") with 3/16" (thick) x 1/2" (wide) flat lamination strips are standard equipment. (As most "Wolfers" prefer to develop their own chain set-ups, the MB-750 "Wolf" comes with no chain. Custom drags can be made upon request.