Stinger Kill Spring™ Economy #11 - The original Senneker Stinger Kill Spring™, in a high quality yet economical Music Wire spring steel. A very compact spring with excellent strength for coyote, wolf, fox, bobcat, lynx, wolverine, etc. May be used with the Alberta Powersnare Trigger to comprise a true powersnare, or may be used alone to comprise a sping assisted killing snare. Always use with the most aggressive locks available. Far superior to the low quality knock offs. This spring is an authentic Senneker made product and is far superior to it’s lower quality knock offs at a very comparable price. Virtually as strong as the deluxe, but is prone to rust in time.