Thank you for viewing. This is a lap timer for Tamiya Mini 4WD cars. It can accurately measure lap times and speed on Tamiya Mini 4WD circuits. [Brand] TAMIYA (Tamiya) [Product Name] Mini 4WD Lap Timer [Model Number] Mini 4WD Grade-Up Parts Series No. 184 [Power Source] 4 AA batteries (sold separately) [Contents] Lap timer body only. Operation has been confirmed, but please understand that this is a used item and that it has been released for some time before purchasing. There are scratches as shown in the photos. I am sorry, but I cannot accept price negotiations. Immediate purchase is available.