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Cora Ball

Microfiber Laundry Ball

Microfiber Laundry Ball

Regular price $42.00
Regular price Sale price $42.00
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Shipping calculated at checkout.

Inspired by the way coral filters the ocean, National Geographic Explorer Rachael Z. Miller invented the Cora Ball, a device that not only reduces the amount of microfibers shed by clothing but also catches what is shed during the laundering process.

Peer reviewed studies have shown the Cora Ball to be effective at reducing up to 31% of microfibers that would otherwise flow out of washing machines.

The laundry ball is 100% manufactured and assembled in the USA. With regular use, the Cora Ball will last over five years. Make an impact by using the Cora Ball to reduce microplastic pollution in our oceans!


100% recycled plastic. Cora Ball has a take-back program, which grinds down old Cora Balls to add to new ones!


Diameter: 4"


  • Toss the Cora Ball in with each load (one will do per washer). It can be used in both top loaders and front loaders.
  • Use Cora Ball when washing clothes made of synthetic materials like fleece, outdoor gear, sportswear and swimwear.
  • Microfibers can accumulate on your ball and tangle with hair and larger fibers. Grab the fuzz balls and dispose them in the trash.

Pro Tips

Please take note of what's in your load before using the Cora Ball. Beware of loose knits, straps or ties that could get tangled in the ball.

If you're not finding microfiber accumulation in the stalks, don't worry! Microfibers are incredibly small—we posted a photo of microfibers next to a grain of rice, for reference. Keep in mind that the ball works to reduce shedding from happening in the first place, so if there isn't much accumulating, it's doing its job.


Enjoy free shipping on orders of $50 or more! A $5 shipping fee will be applied to all other orders. Please allow 3 business days for our team to prepare your order. Packages sent to addresses within the U.S. should arrive in 4-10 business days.

Celsious x TNC

Celsious is collaborating with The Nature Conservancy (TNC) to raise funds to protect our planet! We’ll match every $1 you donate to double the impact. Your donation will be remitted to The Nature Conservancy via Simple Generosity no later than 45 days. Visit for more info.

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