Cell battery holder they can be used individually or configured in parallel or series via the interlocking tabs located on the and sides
Professional laboratory battery holder these durable individual plastic d-cell battery holders can be quickly and easily snapped together to form either parallel or series connections
Experiment equipment warm tip dear buyer, due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! thank you!