Designed and engineered to allow traffic to proceed freely in one direction only. Prevents vehicles from proceeding through controlled entry locations by puncturing tires while allowing unrestricted passage for vehicles traveling in the allowable direction. Effective and economical one-way directional unmanned traffic control. Mechanically activated and engineered with spring-loaded teeth along with a counter-balanced backup system that provides low maintenance operation. Traffic spike section This heavy duty model features a thicker (3/8") top plate and heavy steel construction. Red Color.

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