High-output alkaline batteries, perfect for Mini 4WD cars. Two sets of 2 batteries each, for a total of 4 batteries. Of course, unopened. Found these while cleaning my parents' house. I've retired from Mini 4WD, so I'll pass these on to someone who needs them. Discontinued product, so don't miss this chance! - Brand: TAMIYA - Model Name: POWERCHAMP RS - Battery Type: Alkaline Battery - Quantity: Set of 2 - Voltage: 1.5V Use by date: April 2029