The MagnumSpike can be deployed by one person, in seconds, under any weather conditions regardless of road surface. The patented pin-shear design tire spike creates a smooth, friction-free release of tire spikes offering predictable, safe, high speed stops. All systems can stop all vehicles, 100% of the time - from small sub compacts to semis The only tire spike available on the market to consistently stop vehicles equipped with self-sealing and run-flat tires Included with every MagnumSpike(TM) system: (1) winding reel with 45 ft of 150 lb nylon testing cord (50) extra spikes with safety caps/collars (1) Kevlar glove for replacing spikes, and video Model MS10 MS12 MS16 MS25 Deployed Length 10 ft. 12 ft. 16 ft. 25 ft. Case Type Hard polymer Ballistic Nylon Ballistic Nylon Hard polymer Dimensions in Case 19"x14"x5" 19"x7.25" (rolled) 19.5"x8" (rolled) 31"x20"x4.5" Shipping Dimensions 21"x15"x5 3/8" 20"x8"x8" 20"x8.5"x8.5" 32"x21"x5.5" Net Weight 10 lbs. 10.25 lbs. 13 lbs. 24 lbs. Shipping Weight 12.5 lbs. 13 lbs. 17 lbs. 30 lbs. Number of Spikes 100 120 160 250