The prism 1.8 500 conforms to the international ISO/PAS 17712 standard and requirements of container safety of C-TPAT as the power sealing device of the most advanced stage of reliability. The case is manufactured of high-strength ABS plastic. A cable - aviation steel. Strong metal castle mechanism. Use as the lock since effort to a gap - not less than 130 kgfs is possible. Is in great demand because of the low cost.