12B21 Metric Roller Chain Sprocket | 12B21H

12B21 Metric Roller Chain Sprocket | 12B21H

Marsoni

M251S

$26.39

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

12B21 Metric Roller Chain Sprocket | 12B21HProduct Details : 12B21 Metric Roller Chain Sprocket 12B21H Part No: 12B21H Product Type: B (Stock Bore) Sprocket Type: Metric Sprocket Chain Strand Type: Single Bore: Stock Bore Chain Size: 12 No. Of Teeth: 21 Pitch: 19. 050mm Pitch Diameter: 127. 82mm Bore Stock: 20mm Bore Max.: 64mm Hub Diameter: 100mm Hub Length Thru Bore: 40mm Material(s): Carbon Steel Hardened Teeth: Yes Avg. Weight (lbs): 5 For any information about products, please contact us.

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Love these balls for my dog. They have a nice weight to them so you can throw them far. The material is very bouncy, so they do sometimes bounce over my fence, but they are very tough and not easily destroyed / very chew resistant. My dog is ~65lbs, it’s a perfect size for her, and she loves these and regular tennis balls the most. She is still able to squeeze it in her mouth, so it still has some softness / some give for her to enjoy.

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Reviewed in the United States on May 26, 2026

Verified Purchase

Monika

Natrona Heights, US

★★★★★ 5

Perfect toy for my corgis!

Size: Medium, Style: Medium (4 Pack)

Durable enough for my two corgis. Nonstop chewing cannot destroy these, highly recommend it!

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Reviewed in the United States on May 25, 2026

Verified Purchase

Melissa Ploeckelman

Alexandria, US

★★★★★ 5

Playing fetch for hours

Size: Medium, Style: Medium (4 Pack)

Tennis balls with the hairs pick up so much dirt and then that goes right into my dog's mouth. These are cleaner, my dog loves them, and they are easy to find when my pup decides he's done and drops it in the lawn or the snow. They hold up well after playing hours of fetch with my border collie.

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Reviewed in the United States on April 23, 2026