100% Brand new universal button cell battery testerA great gadget for instant testing of your battery capacityPlace cell battery into the concave and check the pointerMoves slightly to accommodate the battery to make sure the positive and negative terminals is in good contactSize(L x W x H):10 x 5.5 x 2.8cmColor：Random color Weight: 45gOperation Manual:When the indicator is on red zone， the battery is low power station and must be replaced.When the indicator is on yellow zone， the battery is current.When the indicator is on green zone， the baterry is full.Package Included:1 x Cell Battery Checker