What is the depth measured by the Kallax insert plastic wedges?

[fireside]

Kallax inserts (drawers, cupboards) come with a little plastic measuring wedge/clip/thingy to measure how far back to install the inserts.

I've lost mine, and now I need to reinstall Kallax drawers in a new unit.

Does anyone who owns a Kallax unit know the depth these wedges measure to?  I could easily use a measuring tape but I don't know how far back it should go.

Thanks!

[AlvynA]

Hej  @fireside, thanks for asking! Usually, you would be able to place a free order for the part (123482), however, it is currently discontinued. The part actually measures 20.5 mm on both sides. We hope this helps.