Leica Geosystems DISTO GLB30 Laser Glasses - Red Laser Safety Glasses for Construction, Surveying & DIY Projects - Protect Eyes from Laser Beams During Measurements

I had never used red laser glasses before and was skeptical that they would work. Well I no longer have to worry, because these do in fact do work.Even in bright sunlight, I can now see the red laser dot much better, and further than before. Now they don't correct every concern you will have when trying to find the dot in direct sunlight, but they certainly do help. At mid day, on a sunny day I could only see my laser for about 30' (maybe). Now I can see about 90' so it effectively tripled my sight. YMMV depending on the angle of the sun, the brightness, and your eyesight. However most times this fits the bill, and is a good investment.This item also comes with two replaceable lens, clear, and smoked. One for sunglasses, and one for safety glasses. I will not use either of these as I have much better options available. I wish the company would have included two more red lens, in case of scratches, or a red and green lens which would have been nice if you had a green laser.Anyway, worth the money. Just wish the other lens would have been red as well.