Green swing hangers together with our black comfort springs for your new porch swing or swing bed.Springs are made with a high-strength steel, which has a black industrial coated finish to provide protection against weather elements. Hangers are sturdy glass reinforced nylon with steel axle and highly weather resistant. Best hanger we found for coastal environments, spray axle once a year with silicone lube. Mounting bolts not included. See details in pics. Installation instructions included.