Please kindly noted that this item is sold by Set of springs from Joybuy marketplace. Bullet Point: Material: Made of high-quality stainless steel and aluminum. You will get same as the picture. Comes with charger. If you have any questions, please contact us, we will actively solve the problem for you. Description: Battery capacity: 300mAh Color: Red/Green/Yellow/Blue Interface: Android charging port Resistance value: 1.2 ohms Warm-up time: 15S Package Included: 1* Battery Pen & 1*Nozzle Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement.