Fourses

Marsoni

M251S

$166.50

Get it in 3 business days with 1 day shipping. Friday, May 29

FoursesThe Fourses module consists of four bounds bounce oscillators, stacked on top of each other so that their bounds are mutual. Imagine four bouncy balls in a greased perspex tube only wide enough to permit them to travel along it. They bounce off of each other in the tube, and generate intricate but inter related chaotic outputs. Each bouncy ball has the requisite basis and attenuverter knobs, and bounds inserts, control input, and triangular output.

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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My dog absolutely loves this ball with handles! It’s quickly become one of his favorite toys, and he gets excited every time we bring it out to play. The vibrant colors are a huge plus—they make it super easy to spot in the grass, which saves a lot of time during outdoor play sessions. The handles are great for interactive play too, especially for tugging and tossing. I’m really impressed with how well it’s holding up. Even with constant pulling, tugging, and rough use, it’s remained durable and hasn’t shown any signs of wearing out. Overall, I’m very happy with this purchase—and if my dog could write reviews, it would definitely get his paw stamp of approval! 🐾

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Reviewed in the United States on May 24, 2026

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ML Pearson

Massapequa, US

★★★★★ 5

Not for strong chewers!

Color: Large size (7.9")

I have an English Springer Spaniel who is 1.5 yrs. She had this torn apart within the first 5 minutes. This is not for strong chewers!

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Reviewed in the United States on February 25, 2026

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Gail A

Alexandria, US

★★★★★ 5

Durable and fun

Color: Large size (7.9")

Pup loves this toy.

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Reviewed in the United States on May 16, 2026

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pat

Boise, US

★★★★★ 3

Great idea poor construction

Color: Large size (7.9"), Color: Large size (7.9")

Great for a dog that likes tug and fetch but the seams are not strong so it ripped fast not from tug but my dogs teeth. I sewed it once since we loved playing with it but it didnt last. Other seams opened. The seams opened in the ball part not by the handles. Less seams and stronger ones would make it 5 star. Im trying a different brand.

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Reviewed in the United States on May 6, 2026

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Craig

Whiting, US

★★★★★ 5

Perfect Dog Toy and hard to find

Color: Large size (7.9")

Hard to find toy. My dogs favorite toy and this is a really good price.

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Reviewed in the United States on April 25, 2026