Breathing Resistance Whistle Necklace Round Tube Built-in Cotton Core

Product information:
Treatment Process: Polishing
Color: gold, black, steel, colorful, glossy gift box handmade flannel bag without necklace
Applicable people: Unisex
Chain style: Pearl Chain
Material: Stainless steel
Modeling: Geometry, letters/numbers/text
Popular elements: round, oval, line