This Pepper Spray Lock-On Grenade by Fox LabsTM is a hand held unit designed to be tossed. Simply press the top and throw it into an area up to 12' x 12' and watch the mist fill the area. Every person within the area will be affected by the 5.3 MILLION Scoville Heat Units and most threats will be neutralized. The Lock-On style gives you continuous discharge of the contents for up to 10 seconds. It's ideal for control and dispersing of crowds or for securing a confined area. The mist also contains a UV dye that glows under UV light for later identification of those at the scene.