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. The photovoltaic holders are screwed between the solar panels. All you need is an 8mm barrel screw and a flange nut for quick and easy installation. The solar panel holders have a length of 50 mm. They are suitable for all frame heights with a distance of 20 mm HIGH QUALITY MATERIAL: The PV mounts are of the highest quality and are made of high quality 6060 grade aluminium. Due to the anodisation, they are even more durable and resistant to the influence of environmental influences. Color: Black Material: aluminium alloy Package Contents: 30X Solar panels photovoltaic module clamps black 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.