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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I got these for my husband to wear with jeans or business casual dress pants. They look sharp and professional and dress up jeans if you're going out. He says they fit comfortably and he can walk on them all day without his feet hurting. They are beautiful genuine leather so they don't get stinky. I got my husband's normal size and they fit to size.

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Reviewed in the United States on February 11, 2026

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timothy scalabrelli

Battle Creek, US

★★★★★ 4

Comfortable

Size: 9, Color: Black/Ivory

Most comfortable and roomy shoes I ever wore. Great for insoles. Looks nice too. The base of the shoe is a bit too thick but it’s fine.

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Reviewed in the United States on September 5, 2025

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Dan Panetti

Whiting, US

★★★★★ 5

Look and feel awesome!

Size: 11.5, Color: Optic White/Opti

These are awesome shoes - look great really, really white and clean! Love how comfortable they are - and soooo light. I was a little worried they'd get dirty easily, but I've been able to keep them clean. Fit as expected. If you're looking for a great, comfortable, and affordable shoe, check these out!

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Reviewed in the United States on December 4, 2025