Spring-opeing O-rings for key ring, purse loops, handbag, diy craft projects and more. Please see next picture for item dimension. Made of zinc alloy metal with rust-preventive coating. High strength and high resistant to corrosion. Pack of 2 O-rings. Please visit CRAFTMEMORE storefront on Amazon for more craft accessories. 1 1/8 Inch inner diameter spring-opeing O-rings for key ring, purse loops, handbag, diy craft projects and more.