You have selected an iPad Pro 12.9" 2nd Generation Model: A1670 A1671 to get a repair quote on.
You can locate the model number on the back of your iPad towards the bottom. You can also find the model by looking in your settings by going to Settings > General > About > To the right of Model, you'll see the part number. To see the model number, tap the part number. The model number generally starts with an 'A' and is followed by four digits.