A spike strip (also known as traffic spikes, tire shredders, tyre killer, spike barrier,road barricade,roadblock,road spikes, one-way traffic treadles, stingers, stop sticks, a stinger in police slang, and formally known as a tire deflation device) is a device used to impede or stop the movement of wheeled vehicles by puncturing their tires. LZ-02 Spike system is a superior product with a proven track record, serving Law Enforcement, Department of Homeland Defence and military agencies since 2005.The Roadblock has preassabled, recycling,free expansion,safe and efficient coverage of light path, adaptable, lightweight,portable and easy to use features. It's the equipment that police set on the road intercept the suspect vehicle and control the traffic.equipped with 165pcs of Stainless steel Spike at a striking distance and can not cross the cordon blocking the road can quickly and effectively in emergency situation.The pedestal can be tightly contracted when didn't work.When used, it can be extended quickly through the nylon rope,even if it's manual, you can do it in less than a minute. After the car passed, completely tire deflated only need 32 seconds.You can paste your own logo on the box. Hard suitcase frame made by aluminum alloy, the box plate made by ABS material. it was High gloss and could withstand medium impact.Stainless steel Spike set on Brackets of 17 row, totaling 165 pieces. When Axial force ≤30 N, the Spike will Not separated and when axial force≥100 N, them will separated immediately. Bracket made by composite modified Polymide and polythene , it could be work long times in -40℃-55℃ environment. Selection of stainless steel screw also guarantees the service life of the product. 1. 1 piece of instruction book. 2. 1 spike erecting tool. 3. 1 high strength Polymide Hauling Rope and ABS bobbin. 4. 10 Stainless stell spikes of spare.