Adjustable Level Marker / sourdough rise tracker

It is an adjustable level indicator for sourdough. (Or anything else.) It provides a simple way to monitor your fermentation. Why this is better than a rubber band:Zero Slip: Unlike rubber bands, this marker won't slide down or lose its elasticity over time.High Visibility: The horizontal marker makes it crystal clear the starting level or when your starter has reached its peak.Universal Fit: It really doesn't matter what shape the mason jar is.Reusable & Clean: No more sticky residue on your glass from tape or labels. No supports needed, and it is designed for easy printing.The object consist of multiple pieces so you need to assemble it. But it is easy. This way the layer lines can help to make it more durable and you can mix the colors easily.You can use glue but I dont think it is neccessary.