With LED light bulbs on the underside of the cap and also along all 4 walls of these caps

This is where the 4" barb wire arm comes into play

Even if they somehow manage to avoid one set of wires upon reaching the top

you'll need a double wheel assembly to support the weight on the opening end and roll

Barbed wire: item #20074

LiftMaster Elite Series®, Maglock 12/24VDC with Junction Box 60" Tall With LED light bulbs onLiftMaster Elite Series, Maglock 12 24VDC with Junction Box Performance Includes: 1300 Magnetic Lock, Junction Box, 12VDC transformer, and Mounting Plate and Hardware Features 1,300 pounds holding force Equipped with an attached welding bracket and junction box with knockouts on four sides for fast and easy setup Comes with steel armature and mounting plates Designed for minimum 1. 5" gate frame Outdoor face and side plate mounting 12 or 24 VDC power