Markers: Type - Printable Label Sheet; Installation - Snap-In; Used On - Blocks, 4.2mm Wide; WxH - 3.60 mm x 1.64 mm; Material - Polycarbonate; Color - Background - White; Additional Information - Unlabeled, Lettering Field: 3.4 x 4.7 mm, Temperature Range: -40 to 120 Deg C -40 to 248 Deg F; Manufacturer Series - UCT-TMF