Extra-Thick Triangle Rings for Large Cameras (Wire Diameter: Approx. 1.4mm) Strap Adapter for Camera Strap Attachment, Set of 4 The wire diameter of standard triangle rings is about 1.0mm, but this product uses stainless steel (304) metal triangle rings with a 1.4mm wire diameter to withstand the weight of large cameras. * To reduce shipping costs, we plan to ship via "regular mail," but delivery will take 2-4 days (excluding Saturdays, Sundays, and holidays). Delivery will take 4-6 days if it includes Saturdays and Sundays. Furthermore, there is no delivery on Saturdays, Sundays, and holidays. If you are in a hurry or prefer anonymous shipping and tracking information, please change to "Mercari Mail." We will change it for an additional shipping difference (flat rate of 100 yen). (Please comment in advance) Specifications Extra-Thick Triangle Rings (4 pieces) Wire Diameter: Approx. 1.4mm Height: Approx. 2.8mm Outer Diameter: Approx. 15mm Inner Diameter: Approx. 12mm Material: 100% Stainless Steel (304) Metal * The camera in the photo is not included.