These pads are sold in sets of 3 "one for each tripod leg" and fits under most tripod feet and works on any surface; dampens out tripod vibrations from the wind or from touching the scope
Makes observing possible when located near to roads; stops the tripod's feet sinking into softer surfaces
Ideally suitable for astronomy; nature observations; photography and much more; Reduces the oscillation time for the image to settle down and stop shaking and muffles the strength of oscillations
Blocking UV light: The harmful UV rays that can contribute to cataracts are filtered out; The filter is also essential when using a Herschel wedge
The advantages in a nutshell: Only lets through visible light; blocks the UV and IR range; particularly useful for planetary imaging with webcams; optically polished and coated; continued in a robust 2inch aluminium housing