i just got a new (newtonian) takahashi scope

everything works beautifully, but one thing: it came with a reducer, but the thing is it will only thread into the focuser, and nothing supplied threads into it (eyepiece holder, other bits) The extender works like a charm but the reducer is problematic.the reducer came with an apparently useless piece(i later realized that is for a cap).I have supplied pics here.
https://drive.google.com/drive/folde...U0?usp=sharing
