Feature:1. High quality plastic material to ensure maximum durability, which has a long service life.2. Shipping with batteries, solves the problem that you need to buy batteries by yourself.3. Small and compact, make it is easy for you to carry and also convenient to transport.4. Allow you can replace watch movement by yourself, save you expensive repair costs.5. Professional watch replacement accessories which is easy to install and reliable to use.Specification:Item Type: Watch MovementMaterial: PlasticBattery Type: SR621SW Button Battery (Included)Battery Capacity: 18mAhUse: For the replacement of watch movement Package List:1 x Watch Movement1 x Pin1 x Button Battery