CRL Horse Trailer Side Slider Windows have black frames, standard 31% dark gray glass and fixed fiberglass screens. All CRL Horse Trailer Windows are universal (left or right hand) with 1-1/2" (38 mm) wall thickness, and are fitted with conventional outside pull handles. The Interior Trim Ring is also reversible for 1/8" (3 mm) skin mount applications. Horse Guards are internal clamp rings fitted with 1/2" (13 mm) diameter tubing, and are designed to fit our CRL Horse Trailer Side Sliders. Optional inside security latch provided. We also offer the frame dimension, cut-out dimension, angle degrees and wall clamp ring information to further your search requirements prior to ordering these windows.