Are the weights themselves solid steel under the neoprene?

The 'brutto'- weight of one 1Lb-dumbbell is Wb = 460.9g. To know the volume I put it in the Pyrex measuring cup with 800mL of water - the water level becomes 890mL (this measuring is not exact but I've what I have) - so V = 90mL One mL of water is 1cm3. I prefer cgs-system (cm - g - sec), not SI. To guess the metal I've to take away neoprene volume Vm = V - Vn. In assessment of geometry I replaced two hexagons with their corresponding circles and all round squares with straight angled ones. I guess neoprene is h=2mm thick including gaps. Vn= ~ h x 4 x (3.14 x D1^2/4) - 2 x (3.14 x Do^2/4) + 2 x 6 x Yo x Zo + 3.14 x Do x Z = 0.2cm x 3.14 x 4.3cm^2 - 3.14 x 2.4cm^2/2 + 2 x 6 x 2.1cm x 1.6cm + 3.14 x 2.4cm x 8.6cm = 0.2cm x 58.09cm2 - 9.05cm2 + 40.32cm2 + 64.84cm2 = 30.84cm3 . The weight of the metal is the 'netto'- weight Wo = 454g. The density is: d = Wo / Vm = 454g / (90cm3 - 30.8cm3) = ~7.7g/cm3 - The Cast iron density is: d(Fe) = 7.87g/cm3. I could congratulate myself with a pretty good guess that the metal inside this 1Lb-dumbbell is a kind of cast iron. Though stainless steel is in the same range but I think they took the cheapest variant. So probably if neoprene is not hermetic enough then the iron inside this dumbbell could rust. I wiped it dry after I submerged it in a water. I don't think that my sweat would penetrate and humidify that iron to rust unless it's already did rust which I doubt. At least I know for sure that it's not lead (Pb) inside. It's not a copper (Cu) alloy which is heavier and much less cheap. Thanks, China!

How can I order the stand alone?

Don’t order the stand. It’s the most terrible design for a stand ever created.

Is the grip on these easy for small hands?

The grip IS NOT designed for small hands. Purchased the 15lb s and had to return bc they aren’t easy to hold. My hand barely closes around them. I don’t want to crush my chest bc I dropped the weight doing presses.

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Amazon Basics Neoprene Dumbbell Hand Weights for Exercise and Muscle Toning

Amazon Basics Neoprene Dumbbell Hand Weights for Exercise and Muscle Toning

Product ID: 49759995

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Details

Brand
Amazon Basics
Color
Black
Item Weight
10.8 Kilograms
Material
Cast Iron
Special Feature
No-Roll Head

✋Neoprene grip for secure, comfy hold

🛑Hexagon ends stop rolling, stay put

🏋️‍♂️12 lbs per dumbbell for serious toning

Description

💪 Elevate your home workouts with dumbbells that mean business!

COMFORT MEETS CONTROL - Neoprene-coated handles provide a nonslip, cushioned grip that supports longer, safer workouts.
COLOR CODED CONVENIENCE - Quickly identify your weights with printed numbers and color coding—streamline your routine without missing a beat.
STAY PUT HEXAGON DESIGN - No more chasing weights—hexagonal ends keep your dumbbells exactly where you leave them, saving time and frustration.
SCALABLE FITNESS INVESTMENT - Available in multiple sizes so you can mix, match, and upgrade your home gym as your strength evolves.
PRECISION WEIGHTING FOR TARGETED GAINS - Each 12 lb dumbbell is perfectly balanced to maximize muscle toning and strength training efficiency.

Amazon Basics Neoprene Dumbbell Hand Weights offer a durable, 12-pound pair designed for effective muscle toning and strength training. Featuring a no-roll hexagon shape and a comfortable neoprene grip, these weights ensure safety and convenience. Color-coded and clearly marked, they fit seamlessly into any evolving fitness routine.

Specifications

Brand	Amazon Basics
Color	Black
Item Weight	10.8 Kilograms
Material	Cast Iron, Polyvinyl Chloride (PVC)
Special Feature	No-Roll Head
Product Dimensions	8.97"L x 4.36"W
Style	12 Pound, Pair
Handle Diameter	4 inch
Handle Material	Cast Iron, PVC
Number of Pieces	2
UPC	841710155846 840095875578 843639101935
Global Trade Identification Number	00841710155846
Manufacturer	Amazon
Item Package Dimensions L x W x H	9.2 x 8.2 x 5 inches
Package Weight	11.11 Kilograms
Item Dimensions LxWxH	8.97 x 4.36 x 3.92 inches
Brand Name	Amazon Basics
Suggested Users	womens
Number of Items	1
Part Number	ND-12LB
Size	12 pound

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