22 pcs Coin Cell Battery Holder: 20Pcs White Housing CR2032 SMD Cell Button Battery Holder Socket Case & 2pcs Coin Cell Battery Holder - with Switch 2 Battery Holder - Each Holds 1 Single Coin Battery (CR2032 or similar) 4 Connection Points (2 +, 2 -) - Use Solder or Conductive Thread Integrated On Off Switch Use for Wearable Devices, Textile based computers, Robotics, 3D Printer Projects SMD SMT type, gold plated for single button battery. Please pay attention to the Specification Table before purchasing, make sure our product is right what you want. Battery is not included here. Is the Arduino based platform developed for Wearable Technology but there are no limits to how useful this Coin Cell Battery Holder is for any project requiring a CR2032 or equivalent battery! These Coin Cell Battery Holders have a small slide switch installed on the board, in-line with the power so you can shut off your project and save batteries. These boards each hold a 20mm coin cell battery (such as a CR2032) and gives you 4 connection points (two positive and two negative) for sewing or soldering into your project. Product Name : Cell Button Battery Holder Fit Battery Model : for CR2032 Battery (Not Included Here) Color Purple & White, Gold Material: Metal & Plastic, Metal Body Size : 24 x 15 x 5mm / 0.9 inch x 0.6 inch x 0.2 inch(L x W x H) Inner Diameter : 20mm / 0.8 inch Package Contents: 22 x Coin Cell Battery Holder