Size:2",3" ,4", 5",6",7",8",10"

Diameter：φ4，φ4 ，φ4.2，φ4.2，φ5 ，φ5，,φ5

D shaped screw lock ring is made of metal , these goods are nickel finish, more durable using for binding,D shaped screw lock ring has many sizes,also have recentage shaped screw lock rings,packgae can be bulk or on your demand.