3 components make the difference compared to normal sewing yarn:

1. High Elastic Core: stronger gripping force holding the button threads tightly

• 250 meters per cone

• Wraps up to 8000 buttons

• Up to 500 % elasticity

• Resistant to washing fatigue

• High gripping force

• High tenacity and tensile strength

2. Stronger heat-sealing component: heat-seals the wrapping, so the wrapping cannot come loose.

• Higher percentage of melting component

• Gives slim elegant look

• Unsolvable thanks to heat-sealing.

• Bonds the wrapped TF-Yarn together

• Eliminates loose ends and tails

3. Coloured component: 

• 17 fashionable colours, certified washing and dry
  cleaning proof 

• Tested regularly times by internationally recognized institutes (Hohenstein Institut, SGS, Underwriters
  Laboratories, etc.)

• Certified Oeko-Tex Standard 100, class I for baby wear, REACH Standards and  M&S-Quality standards.

• Durable: Resisting to light, ironing, rubbing and washing proof up to at least 60 ° C as well as resistant to chemical cleaning.

• Spooled on FSC certified & recycled paper cones

• Sustainable: made with pre-consumer recycled
  materials