Sumiko Amethyst MM Cartridge

Marsoni

M251S

$329.50

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

Sumiko Amethyst MM CartridgeThe Amethyst is the top model in the slightly confusingly named Oyster series of cartridges from Sumiko. Despite apparent physical similarities to the other 4 models that share the same appearance, this is a near total reworking of the design, so it stands alone and cannot be fitted with the styli from other models in the range. A new generator assembly is the heart of it all, and it combined with the lightweight Alnico magnets results in a low 2. 5mV

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My dog loves it and it keeps her busy for a while. She actually pulls it out of her toy basket and brings it to me when she wants it filled. I break her treats into some pieces that are easy to get and some a little harder. This way she doesn’t get them too fast or loose interest if they’re harder to get. Also, she’s had it for 3 months and there’s barely a mark on it and she’s still a puppy that chews her toys to pieces.

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Reviewed in the United States on May 5, 2026

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Jen M.

Grantham, US

★★★★★ 5

Durable, cute, & smells so good!

Color: Bear

OMG- didn’t expect this to be my dog’s favorite stuffable dog chew, but it is!! This durable rubber like dog chew is still intact and smells like blueberries after over 2 months! Great for hours with each new treat! Am buying another, when I need to :) great value

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Reviewed in the United States on April 4, 2026

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Houston, US

★★★★★ 4

Mostly happy

Color: Grape

Have a 1 1/2 yr old Belgian Malinois who needs things to do. I bought these and he loved it. Bad thing, it took him 1 day to chew the rope off both grape and pineapple. The stems on the cherry were also chewed off. The rest of the toy is intact and he still loves it.

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Reviewed in the United States on May 14, 2026

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Marcie Greer

Draper, US

★★★★★ 5

Very durable!

Color: Cherries

Pups love it.

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Reviewed in the United States on May 30, 2026

Verified Purchase

Mrs. H.

Battle Creek, US

★★★★★ 3

Came apart.

Color: Cherries

We were playing with it and the green part pulled off of the red part. I'm pretty sure that is not supposed to happen. I took the green part away from the dog because that part is too small for my pup to play with. But we continue to play with the red part. My dog likes the texture and the bounciness.

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Reviewed in the United States on February 26, 2026