... . Size: 1", 1.5", 2", 3", 4" Style: O Rings, D rings, Delta rings 2.Company brief introduction Shanghai Safety Kingdom Co.,Ltd ... Strap B. Buckles : Ratchet Buckles / Overcenter Buckles / Cam Buckles C. Rings & Hooks : Flat & Snap Hooks / Wire hooks/ Forged Hooks D. Cargo ...