Used to recover persons from the water who are unconscious or otherwise unable to help themselves. In some cases accepted by Flag states as an alternative for a rescue boat. Not included in delivery; Storage bag - Suitable for most vessels with up to 4.5m freeboard - Rungs: - Delrin 100T High Tensile Plastic - Centre/End Caps: - Polyethylene LDPE & HDPE - 316 Marine Grade Stainless Steel Link Components - Stainless Steel Fasteners Used Throughout - Fixing Clips Breaking Load 3200kg Tensile tested in excess of one metric tonne (2,205lbs)Service interval: After 3 years of manufacture date, yearly.