Encrypted DIP Single-Button Remote Control AFC-013 Can be used as either

Can be used as either traffic spikes or a speed bump

with the opening of the ring facing forward

And the best part is this cap does not require electrical connection so you can forget about all the hassles involved with wiring and plug-ins (not to mention ramping up your electric bill)

but due to their roundness makes them a little more difficult to mount wood rails onto

Bottom tension wire will help prevent people and animals from pushing their way underneath a fence

Encrypted DIP Single-Button Remote Control AFC-013 Can be used as eitherEncrypted DIP Single Button Remote Control Performance Ideal for applications such as gated communities or commercial applications requiring a large number of remotes for a common entrance Dual 12 position DIP programming offers up to 4,096 codes Narrow band transmission on 3 simultaneous frequencies (310, 315, 390 MHz) Compatible only with Security+ 2. 0 commercial receivers and operators Safety and Security Encrypted DIP style single button remote