Schlüter Shower Drain spacers

These are spacer collars for the Schluter shower drain. I found that it is easy, when setting, to press the drain and surrounding tile too deep. This adapter holds up the tile flush to the drain and also prevents the whole drain assembly from being pushed too far.

I can add the downloadable file if there is interest for anyone wanting to change the spacer heights to use with other tile thicknesses. My tiles are 3/8"