Stem Shim 1" to 1 1/8"
This shim allows the use of regular 1-1/8" (28.6mm) threadless stems on 1" (25.4mm) un-threaded forks. The shim is 38 mm tall.
If you want to use this with the Tall Stack Stem, stack two on top of each other and sand about 1.2mm off the top shim.
Looks like it would have worked great but never received it, lost in the mail I suppose.