1/2" tall, 3/4" wide, 3/8" deep first surface laser mirror block made by IOS Optics, a supplier for major brands such as Continuum, Melles Griot etc.

Tested with RGB lasers shown, about 80% reflective  @ 45 degrees.

Great for gluing into a permanent install. Or use on prism table. Has a 45 degree cutout for an unknown laser design.

Quality BK7 substrate

See my other auctions for more IOS optics.

I combine ship as well.