Shock Track is super flexible, and will turn, corner and bend in any direction. Unlike other electric track systems, Shock Track for Birds does not require any separate hardware or labor for cornering! It is super fast and easy to install, and attaches easily on any surface (concrete, brick, wood, etc.) All installation hardware is included with each kit – no need to purchase separate hardware * Does Not Harm Birds! * Mild Electric Jolt Changes Bird Habits! * Low Profile - You Can't See It...Birds Hate It! * Easy to Corner...No Need to Cut and Re-Connect! * "Flow-Through" Design will not "Dam" Water Behind It! * Super Light - 100' Kit Weighs Only 10 pounds! * Available in four colors – grey, stone, black & terracotta