welcome to the Forum, there are ones out there like the Hi Viz, and have a screw on base so would work,BUT I prefer to use ANY 'bright color, paint, nail polish ,whatever on the face of the ramp.....Testers Day Glo orange, stands out BETTER than ANY Hi Viz "tube type" sight we know of and will hold up better to any abuse, see many of them 'tube" sights, and they are cracked/broken....to ME , they are kinda "flimsy" to say the least...just my .02 cents