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Reference Stage Graticule, supplied with a certificate of calibration from NPL UKAS

Marsoni M251S
Sale price$8708.74
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Get it in 3 business days with 1 day shipping. Friday, May 29
Reference Stage Graticule, supplied with a certificate of calibration from NPL UKASPattern NPL Description Reference Stage Graticule Key features Image Analysis Standard, also known as reference stage graticule. Supplied with NPL certificate of calibration. Order code 05B01085 This calibration stage contains four test areas comprising; a 400 x 400 micron square grid, a 20 x 17 monosize array of 15 micron diameter spots, a Root 2 array of spots from 3 to 48 micron diameter, and a log normally distributed array of 100 spots ranging
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.9 ★★★★★
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K
Verified Purchase
Kimberly Farnham
Battle Creek, US
★★★★★ 4
Great for small dogs
Color: Four colors, Size: 5cm (ball only)
Durability
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
J
Verified Purchase
Janet
Carnegie, US
★★★★★ 5
Great toy
One of the best dog toys ever! Well made & sturdy enough to withstand hrs of play & tug between my Lab & my Westie.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
K
Verified Purchase
karen
Los Angeles, US
★★★★★ 5
Extremely Durable for Large Dogs
Great for a dog who loves balls. Extremely durable for my the dogs, each over 100#!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
T
Verified Purchase
TAngell
Battle Creek, US
★★★★★ 5
Favorite toy.
Seems to be of good quality. There are probably a dozen different name brands for these balls. Our puppy loves these. Our son’s 90 pound golden lab has had one for a couple years. He has his outside and it’s a very similar design. Although not the same manufacturer.
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Reviewed in the United States on April 18, 2026
W
Verified Purchase
Wendy Romano
Battle Creek, US
★★★★★ 4
Ball obsession
Dog loves these but he is an aggressive chewer so once he gets a hold of that sweet spot ball has no chance..
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Reviewed in the United States on May 30, 2026

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