Our MS-B10 bolt seals are comparable to most competitive bolt seals and feature an "anti-spin" security feature. These seals are rated HIGH security by ISO17712:2013 and CTPAT for cross border shipments. The seals have the standard usable length (1.6 inches) for added clearance and convenience for bolt cutter access to the bolt for removal for typical truck trailers and shipping containers (for rail cars, see MS-B7 or MS-B8). The MS-B10 is available is small order quantities (50 seals). The only available color is YELLOW.