The Rescue! W H Y(R) Trap is a reusable device that can clear an outdoor area of hornets, wasps, and yellow jackets. It works with the attractants in the W-H-Y(R) Attractant Kit to lure stinging insects into its two-chambered design and leave them with no means of escape. This model comes with a two week starter supply of attractants. | RESCUE! W H Y Trap for Wasps, Hornets, & Yellow Jackets