These are fuel pump rods that we use in our Things. (99.5mm for ALT/ 107mm for GEN) They are the same for Type 1 as well. CIP1 is showing the tempered rods on their web site but ship the non-tempered on orders.
In the pic the rod on the right is the stock rod with the tip tempered. What CIP1 is shipping is the rod on the left which is junk because there is no temper and the end wears down within 1000 miles. We have replaced 4 of these. Two just on our last Thing Rallye.