3DWare.ch Handelsware Threaded Heat Set Inserts Kit 500pcs 3D-Heatset KIT1

Do you need melting sleeves but don't know which ones?
With this set you get a selection of M2, M3, M4, M5 and M6 in 4 different lengths.
You get 25 of each sleeve.

So there should be something for every project.