Although other competitors utilize a nylon webbing material, "The Grip" has designed its restraint straps to withstand 1500 lbs of applied tension compared to the minimum tension standard set by the National Institute of Justice of only 495 lbs., and incidentally is the maximum to which our competitors' products tested to. Tension testing for "The Grip" was conducted and certified by Pittsburgh Materials Technology, Inc. of Jefferson Hills, PA.

The state-of-the-art design of "The Grip" is the by-product of the knowledge and experiences of seasoned law enforcement professionals who have had to use inferior suspect transportation restraint devices. Their collective ideas have resulted in a product that surpasses the feature functionality of any competitors' devices, thereby giving them a significant competitive edge in the marketplace. 

The GRIP was tested in a fashion similar to the standard established by the NIJ for traditional handcuffs (see diagram). The NIJ test exerts a force of 495 lbs for 30 seconds in the direction of the arrows. The handcuff must then be inspected to show no signs of failure for proper operation.

In similar tests, The GRIP showed no signs of failure at 500 lbs of force sustained for 30 seconds. Testing ceased when it was unable to produce a critical failure under 1500 lbs of force.

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