Combined Test Specimen Gold/Carbon

Marsoni

M251S

$308.29

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

Combined Test Specimen Gold/CarbonA holey carbon film is shadowed with gold and graphitized carbon particles are deposited. These particles viewed over the holes may be used for assessment of factors limiting the microscope performance. The evaporated gold forms small polycrystalline islands and within these islands lattice fringes can be resolved. This specimen is also used for contamination measurement rates in the electron microscope by noting the deposition rate of carbon within

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Im giving this 5 stars because the size is perfect for my French bulldog and my mix breed. They like the shape and they are very durable. Usually they chew up anything plastic like big Legos and other types of similar toys. So I figured for the price and quantity this was an excellent deal. At first they could have cared less but since they know they can chew them they do so every so often. Im mind wired when it comes to dog food or treats I smell them and taste them first. And these chews toys were no different. I did not smell any type of bacon sent but maybe he dogs do. They are not obsessed with them but no means but they serve as a chew option non the less. I will put them in a bag of treats to absorb the smell so they are more appealing in that manner. They have yet to make a dent chewing wise unlike the Legos. So they will last. So 5 stars for price..shape..quantity and durability.

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Reviewed in the United States on September 24, 2025

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Locker

Draper, US

★★★★★ 5

Long lasting chews

Size: Large, Style: Dog Chew Toys

These last a long time (many months) for very aggressive chewers 60-80 lbs. One of the more popular options in the dogs' toy bin.

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Reviewed in the United States on March 10, 2026

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