Thanx Jeff, I'll check on it. At present, a rubber band provides enuf tension for reliable laser operation. I've read that these yellow DPSS lasers have a reputation for ticklish, uneven operation, though mine has been quite steady, with a golden sunny yellow hue that I find to be the most cheerful pointer color. Good luck with your "new" laser. BTW, my yellow laser came from Austria--a few miles down the road from Schwartzenegger's shrine. Thanks, again.