Stainless steel solar panel hook: the rust-proof stainless steel hooks are used for framed solar panels. Easy to attach to the balcony railing without much effort. Easy installation: the balcony hooks easy to assemble. The hooks are screwed to the existing holes of the modules. The modules can then be hung on the balcony and secured against hanging again by another screw. Thanks to the included steel cables, the modules are secured to the balcony, so that for example, the modules do not start to flutter when windy. material: solar panel balcony hooks use stainless steel and corrosion resistant for a long service life. Universal compatibility: solar panel balcony hook is compatible with a of solar modules and photovoltaic , making it a versatile choice for different applications. Set: Set B 4 hooks+4 screws+8 washers+4 hex screws+4 ropes Material: Stainless steel colour: silver Package Contents: 4 x stainless steel hooks 4 x M6 stainless steel self-locking screws 8 x stainless steel washers 4 x M6 hex screws 4 x ropes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.