Description which are used for solar photovoltaic system energy components and steel rail connection and installation, very practical and efficient. Never worry again when installing: our holders for photovoltaic modules are carefully cut and worked. Subsequent deburring of drill holes is not necessary. Easy installation: the holders for solar systems are for mounting photovoltaic systems. Easy Installation: design makes the buckle easy and quick to install and fasten into the guide rail, no screws and tools need, fastening and grounding can be done at the same time. Quality material, rustproof, , has long service life. Colour:Silver Material:steel Size:About 44x48x34mm Package Contents: 50 x PV Solar Panel Mounting Bracket 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.