Package includes 4 pieces of somoth chrome plating finish swivel snap hooks sized in 1"x3.19" Applications for the swivel hook trigger snap include pet leashes and collar, pet harness, purse straps, backpack straps, keychain, outdoor gear etc. Heavy duty with smooth chrome plated surface. Rectangle shape base. Spring-loaded triggers. 360-degree rotation for easy clip, swivel flexible to prevent tangles. Material?Zinc. Durable and anti-rust design for long-lasting use.