High Resolution Calibration Standards for AFM, SEM, Auger, 145 & 292nm pitch

High Resolution Calibration Standards for AFM, SEM, Auger, 145 & 292nm pitch

Marsoni

M251S

$3122.12

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

High Resolution Calibration Standards for AFM, SEM, Auger, 145 & 292nm pitchHolographic Grating for Scanning Electron Microscopy, Atomic Force Microscopy, Auger and Focused Ion Beam Precision, holographic patterns, provide accurate calibration and feature high stability and usability. Moderate ridge heights are convenient for AFM. Specimens provide good contrast for secondary and backscatter imaging with SEM. They enable accurate calibration for high resolution, nanometer scale measurements. Available with 145 and 292nm

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Unfortunately I ordered mine before the last review that said these are slip-ins. I'm not understanding that sock thing. It makes it harder to put the shoe on (So opposite of a slip-in) And it pulls your sock down (pictures show them wearing one) constantly when you're walking. And apparently the shoelaces are just for looks? But they're so long you have to tie them anyway, and as someone said the laces are bad. Skinny wax. I'm going to give this three stars though because they are very comfortable. So at this point in time I don't know if I'm going to return them (I got brown) as there aren't too many sneaker dress shoes (arch support) there's dress shoes that are more comfortable (but not sneaker comfortable).

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Reviewed in the United States on February 11, 2026

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Amy Carreon

Louisville, US

★★★★★ 5

Love the color!

Size: 9.5, Color: Dark Tan

Boyfriend loved them, nice and rich in color. He thought they were comfy and the style was accurate.

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Reviewed in the United States on May 31, 2026

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mike espelund

Dallas, US

★★★★★ 5

fits well

Size: 9.5, Color: Black

great shoes suprisingly well made

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Reviewed in the United States on May 13, 2026

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Amazon Customer

Cuba, US

★★★★★ 5

Good design

Size: 10.5, Color: Cognac, Size: 10.5, Color: Cognac

Nice design and perfect craftsmanship. For the shoe material, the quality is ok.

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Reviewed in the United States on April 11, 2026

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Marina Eshak

Fort Morgan, US

★★★★★ 3

Light but average

Size: 10.5, Color: Black

Three stars. These are very lightweight and seem fine for the price, but the leather felt a bit too thin for what I was looking for. I didn’t even end up trying them on because they just didn’t feel like they would hold up long term. They’re not bad if you need something inexpensive for occasional wear, but I wanted something that would last. It felt like they might scratch easily, so I decided to return these and go with a more expensive option instead.

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Reviewed in the United States on February 2, 2026