Project Box Plastic, Holds One 18650 Li-ion BatteryCondition:* New, Old Stock. Never Put Into Service. No OEM Packaging. As Pictured.Additional Notes:* Small DIY Project Box* Color: Gray* Outside Dimensions: Approximately 3.6″ (L) x 2.4″ (W) x 0.96″ (H)* Inside of Box Has a Place For One 18650 Li-ion Battery* Hardware Included* Three Small Access Holes on One Side* One Small Access Hole on Bottom of BoxPraxsoft17950