It has a Lobster Lock and Cuban Chains are considered to be very solid and durable Chains. 3mm 6.2 Grams 6.9 Grams 7.7 Grams 8.4 Grams 9.2 Grams 10.1 Grams 10.7 Grams 11.5 Grams. The Length is 16” 18” 20” 22” 24” 26” 28” and 30” to Choose from.
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