$Crossline Diffraction Grating$

Crossline Diffraction Grating

M251S

$135.65

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

Crossline Diffraction Grating500nm Magnification Calibration Diffraction Grating Replica Carbon replica with Au Pd shadowing on a cross line grating with well defined trench type grooves. Pitch or "d" spacing for parallel line grating is 500nm. The trench type groove makes it easy to measure the pitch. Typically, cross line grating is used up to 100,000x with 2,000 lines mm in both directions. Instructions included. Made on a G400, 400 square mesh copper grid. Magnification

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I absolutely love these Sam Edelman Bay sandals in Atlantic-/Tide-blue. The 9 M fit me perfectly — true to size and very comfortable right out of the box. The leather is soft but sturdy, and the slide design makes it super easy to throw on for errands, brunch, or just relaxing around town. The footbed has enough cushioning that my feet don’t feel tired after a few hours. Overall, great quality and style, and they look more expensive than they really are.

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Reviewed in the United States on November 22, 2025

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Louisville, US

★★★★★ 5

Beautiful Sandals

Size: 8.5, Color: Greentini Sequin

Beautiful, comfortable sandals. True to size. I purchased the green sequin - love them!

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Reviewed in the United States on May 27, 2026

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pilates instructor

Houston, US

★★★★★ 5

Spectacular buy !!! Look so high end .

Size: 9, Color: Coastal Blue

These shoes are FABULOUS!!!! Gorgeous color and fit perfect . I am a 9 and ordered a 9 . Look so fancy - bought for a baby shower !

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Reviewed in the United States on April 13, 2026

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Draper, US

★★★★★ 4

Great

Size: 8, Color: Navy Distressed Denim

These sandals are stylish and comfortable—perfect for everyday wear or vacations. The leather feels soft, and the design looks even better in person. They fit true to size and go well with both dresses and jeans. The only small downside is that they took a couple of days to fully break in, but after that they’re super comfortable. Overall, a great pair of sandals with nice quality and classic style!

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Reviewed in the United States on December 27, 2025

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Sadie Syka

Phoenix, US

★★★★★ 5

Super cute!

Size: 8, Color: Gold Leaf Marche Embellishment

Love!

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Reviewed in the United States on May 24, 2026