JY-MARINE kayak tie down eye straps made of marine grade stainless steel 316,heavy duty,the screws' material also stainless steel, You can use them to hang kayaks on the ceiling of the garage;hanging shade sails on;holding Christmas and Halloween decorations;as bungie cord hooks,secure tie-down for bungies,as mounting points for patio festoon lights,for a shade canopy with bungee balls,run curtain track on my SUV's windows for car camping etc. They can last for a lifetime.