https://edgytools.com/product/wedge/
The Talon Window Wedge is ideal for Paintless Dent Repair, also known as Paintless Dent Removal or PDR for short.
When you need to use a dent repair tool or rod down in a door, you will use a window wedge and window guard to create an opening and protect the glass. The Talon is an awesome wedge for this use.
It is recommended to use 2 of them (one wedge on each side of the shield) to spread the pressure evenly.