Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
Prusa i3 MK2/MK2S Extruder UpgradeIn stock, ready to ship. This extruder upgrade kit is for the Prusa MK2 or the Prusa MK2S where you don't have our Bondtech gears. This kit contains the necessary parts to convert to our freshly designed extruder that uses 3: 1 gearing ratio for improved precision and resolution, optimized geometry for the heat sink cooling and many other improved features It also reduces the moving weight to reduce vibrations and ghosting. This is a co development
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 2053 reviews
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Product Reviews
★★★★★ 5
Will buy again
Color: Non-Squeaky - Pack of 12, Size: Medium
Great tennis balls for our 2 year old dog. Durable enough for moderate chewer’s
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Perfect size
Color: Non-Squeaky - Pack of 12, Size: Medium, Color: Non-Squeaky - Pack of 12, Size: Medium
Safe to say the size is perfect for large dogs. Great to chew on or play catch with.
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Reviewed in the United States on May 30, 2026
★★★★★ 3
Didn’t hold up for large dog
Color: Non-Squeaky - Pack of 12, Size: Medium
Nothing like original tennis balls
My dog had it busted open within hrs of playing catch. But she’s big and likes to chomp on them also
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Great to keep your dog entertained
Color: Blue
Great toy my 13 month old cane corso absolutely loved it and it kept her entertained forever except she has an extremely strong bite so she was figuring out a way to split it apart so I had to take it away -it’s extremely strong, but not strong enough for the bite of a cane corso but any other dog would love it. I just wish my dog didn’t have such a strong bite and would be able to keep enjoying it since it is a little expensive the only problem with it is that I thought the remote shuts it off, but then her bites were making it come back on, so I don’t know if it was my dog or the toy just doesn’t stay off until you turn it on.
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Reviewed in the United States on March 1, 2026
★★★★★ 1
Stopped working within 3 days
Color: Blue
Worked for 3 plays. My 11 week old puppy loved this item. Unfortunately, it only lasted 3 tries before the motor stopped working. $30 for a total of 30 minutes over 3 days is robbery! I'd look at another vendor for the same type of item. We charged it after each attempt but now the motor won't turn on.
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Reviewed in the United States on February 12, 2026
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