These bead rollers are designed to make beads with polymer clay. There are seven bead sizes from 1cm up to 4cm (~1.5")

They are designed to print with filament (or resin). 0.1mm layer height is best
 

Print on their ends to avoid line marks on your beads. If you add a brim for printing you will have to cut the brim off cleanly before using them.

Watch a demo tutorial here: Bead Roller Tutorial

Created Using the 3D Cookie Cutter App:

These bead rollers were designed with my 3D Cookie Cutter app. Check it out here: 3D Cookie Cutter on the App Store