Extra-sharp curved embroidery scissors
Fine points allow precise cutting.  Adjustable tension joint.  Curved blade ensures easy trimming safely away from the fabric.

Care instructions - clean scissors regularly.  Use a soft cloth with anti-static spray.  Particular care is needed to ensure blades are free of any glue or sticky tape, even the smallest amount of glue or tape will impair the scissor cutting action.  To remove glue or tape, wipe with a soft cloth and mineral turpentine.  
Oiling:  occasionally, open the scissor fully and apply a small amount of sewing machine oil to the pivot joint.  Wipe off any excess.

Special Purchase.