Nickel-plated alloy handcuffs with 2 keys supplied. With double locking system that avoids any further narrowing of the wrist cuff (after closing the wrist cuffs to the sufficient size, pressing with the opposite tip of the handcuff key on the hole in the edge of the cuff). Sale reserved exclusively for members of the Armed Forces. Each pair of handcuffs has the production serial number engraved. Made in Taiwan. Gross weight: 265 grams.