Size fits small to medium fingers. Nice shallow style ring. Easy for glue pick up.
Put very small drop in bottom of glue ring
place on pointer finger or thumb make sure you keep your hand steady while applying lashes and ring does not tip to the far left or right.
Change glue drop after 20-30 minutes
Glue ring must be cleaned out between glue drops
Clean ring with paper towel or flock tipped brush
Or cotton material 
Wipe clean and renew drop of glue
Use new ring for individual clients