During the summertime, wasps can ruin your enjoyment of the outdoors. These hobnail glass wasp traps make that a thing of the past! All you need to do is fill the glass jar with lemonade or vinegar to lure in the wasps. Because of its construction wasps can get in, but they cannot get out. These wasp traps should be placed on an even surface or hung from the metal loop at the top. Cleanup is quick and easy. Choose from either a standard sized trap or a large trap.