Chicago Model 1000 Blue Handcuffs. Double locking police handcuff with blue powder coated finish and exposed rivets for greater strength. Stamped CHICAGO on both cuffs. 22 locking positions. Inner perimeter measures 5 5/8" to 8 1/4". Weigh 9.4 ounces. 2 keys included. Excellent value for professional quality handcuffs.