Hubbell XPHFO310 10-pack of label holders. Originally designed for Hubbell fiber optic cabinets but can be easily adapted to other uses. Can be used with Hubbell HPW XPLFO525W and XPLFO700W labels. These are tinted amber. I am not sure of the reason; it might have to do with reducing glare. Measures 3"h x8.38"w.
