Tray of 40 6V CR2032 cells. 

Also known as: BR2032, SB-T15, CR-2032, DL2032, ECR2032, KCR2032, BR2032, LM2032, CR2032BP, EA2032 

• Dimensions of Each Cell: 20mm diameter x 3.2mm thick
• Weight of each Cell: 3.1g
• Nominal Voltage: 3.0V Capacity: 210mAh (30k Ohm load)
• Max Pulse Current: 15mA (recommended)
• Standard Current: 0.1mA
• Capacity (nominal): 210mAh