If you like to make crafts that use fabric or ribbon, you are familiar with unfinished edges. When sewing, unfinished edges are typically hemmed under, which protects the edges from further fraying and keeps them out of view.
June Tailor JT-377 fray Block
Wig Guides, Information and More - Patti's Blog - Mending Frayed
How To Fix Frayed Cuffs? - Wayne Arthur Gallery
Off The Cuff ~Sewing Style~: Tutorial- How to Make a *Washable* Flower Embellishment
CHAT] How many of you use glue or some kind of fray block for the ends of your strings? Do you think it's necessary for big pieces? : r/CrossStitch
How to Use Fray Check
How to Use Fray Check (Fast and Easy Tutorial)
Securing Serger Thread Tails With Dritz Fray Check
How to Use Fray Block
Removing Fray Check from Fabric: Step-by-Step Guide
Long Island Sewing Teacher: French Seams with a Side Vent