$Crossline Diffraction Grating$

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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My back suddenly decided to show me who's the boss. This reading pillow has been a God send! It is substantial without being too hard, soft enough to be comfortable without being too soft, absolutely no lumps! The outside cover is removable to allow for machine washing and is so soft to the touch. There is a handle on the back that makes it easy to move. This has allowed me to be able to sit upright, much appreciated!

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Reviewed in the United States on May 19, 2026

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Sonja Foster

Pawtucket, US

★★★★★ 5

Huge, super soft, cozy pillow!

Size: Jumbo (25-Inch), Color: Sage

This pillow is awesome! As a plus size person who can't sleep laying flat, the size and support level is perfect. This pillow is huge! The quality is very high, the stitching is precise, and the sage green material is soft and cozy. Great value for the price! I highly recommend this reading pillow!

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Reviewed in the United States on May 28, 2026

Verified Purchase

Alexandria, US

★★★★★ 5

MUST BUY Item for Breastfeeding Moms

Size: Standard (18-Inch), Color: Dark Grey

MUST GET item for breastfeeding moms. It is a soft pillow with a removable washable cover. The material is like a suede, which can make it hot to lean on if you typically feel hot when breastfeeding or sleeping. It allows you to sit up straight while in bed with great support.

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Reviewed in the United States on May 1, 2026