New, still packed in crate (does not come in its own crate), 3/8" thick frameless, Holcam "Luna Bypass Shower Slider" for a 4' (or slightly less opening) shower pan or stall. The chrome finish, heavy duty, barn door style track is 45 1/8" long, and the mounting hardware will add 1/4"+ to that. Designed for a 46" opening