These durable metal mounting rings fit either a 1 inch or 1 1/4 inch housepole. The rotating ring allows for 360 degree rotation to help prevent flag from wrapping around the flagpole. The attached metal caribiner make mounting flags with D-Rings or extra large grommets a snap. Cast aluminum metal ring and stainless steel caribiner clip will hold up under harsh UV sun rays. Rings are sold as pairs (Quantity 1 = 1 pair or two rings).