Silicone Face Mask Adjuster Beads Toggles for Elastic Cord - Etsy UK
100m reel Crystal Tec elastic cord - Clear / Black strong stretch silicone jelly[0.5mm,Clear] - ChromaBeads
100 pcs rope lock for mask, silicone rope stopper for elastic adjuster, non-slip ear hook for pull rope buckle spring and anti-slip stopper for elastic rope adjuster for pull rope