8895 NAPA Auto Parts Window Sign by Miller Signs Suitable for HO, S, O scale comes on a clear background2"w x 2.2"t and can be trimmed to .875"w x .9"t 3 sequences, on/off/a single flash sequence, runs on 4.5 volts comes with a sign, circuit board and AAA battery bos, completely assembled may also be lighted with a 48.4 converter, and either a 4802 or 4803 adapter