4 SENTRY ALARM MINES .22 Cal trip wire alarms MULTICAM PREPPER PACK Property Perimeter Secutiry Henry Krank Style Mini-Sentry Airsoft Paintball Claymore Safe to use .22 Cal Blanks available at any Hardware Store or Amazon.com 100% Steel Construction made in the U.S.A. As seen on American Restoration with David Copperfield Featured in Guns America "Prepping 101"