A very high quality filter 3 x 3" gelatin filter holder, this fits all lenses which accept 52mm threaded filters, though with lenses with focal lengths shorter than 24mm it is not recommended due to the possibility of vignetting. There's nothing fussy here, no little secondary metal frames to shoehorn in and out of the device; merely leave your filter in its originally-supplied paper casing and use tweezers or, quite carefully, your fingers placed only upon the filter's corner.
The filter holder has a 62mm thread in front,to accept a lenshood and filters.