These tree decorations are printed in “spiralized mode.” Printing in spiralized mode is fast, uses less material, and gives you the best optical quality for your translucent filaments.
See here for video: https://youtu.be/cXp54iDL20g
The bottom fits a standard electric LED tealight.
Each set include four styles of trees: small and straight, small and curved, large and straight, large and curved.
This set has ornaments: https://social.thangs.com/m/528318 This set is without ornaments: https://social.thangs.com/m/528337