It is used to repair and assemble batteries pack only for people who are familiar with battery performance and have practical experience in battery assembly. The appearance and color of products with different batches, which not affect the use Type:For Battery Case Type:For Battery Tool Protective Board for 15-Cell Battery Tool Colour:random color , don't accept the specified color Material:plastic Package Contents: 1 x DIY Battery Board Kits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.