"These are not metalAlso the gap where you feed the leather sling thru is too narrow to get the rivets thru.Since it is not metal, you canmodify it to get the rivets thru."
"High grade polymer, very easy to install. The sling fit through easily if you follow the rule of using a swivel that is 0.25 inches wider than the sling itself. I'm a leather worker by trade and I always use that rule. Prevents binding of the sling inside of the swivel."
"I was pleasantly surprised that this item came as a package of two swivels. I thought I was only going to get one of them since the product description does not explicitly state there are two per package. The swivels are made of a very tough and durable material, and they require only hand installation because the screws self-tighten after being screwed-in. Also, the swivels easily accommodate my 1 1/4\" wide sling."