Copper hook masses

Marsoni

M251S

$49.40

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

Copper hook massesSet of nine weights includes: 10g 20g 50g 100g 200g 500g 1000g. These weights feature flat countersunk bottoms, with a double ended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Weights are made of polished brass and come in a storage block. Premium Quality: Kit is made of high quality, heavy duty and durable materials. Designed for use in professional laboratories but is an ideal

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This thing comfortably fits my 16” MacBook Pro. It does tilt a bit probably due to me screwing it to the underside of my wooden desk which probably isn’t the exact use for it, but it holds really strong and isn’t going anywhere. Combining this with a small USB-C hub for some USB As and and extra HDMI and a little bit of Velcro, this holder makes for a pretty solid option to hide you laptop away if you a surprisingly clean desktop-like experience, even if you’re on a budget and can’t afford a desktop. A proper thunderbolt docking station would go a long way with this as well.

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Reviewed in the United States on March 16, 2026

Verified Purchase

JJD

Louisville, US

★★★★★ 4

Works as advertised

Color: Black

Functions as described. Looks good. Laptop fits in loosely. I’d prefer a more snug fit. Other than that, works as advertised.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 19, 2026