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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🏋️‍♀️ Elevate your strength game with grip, stability, and style!

STAY PUT STABILITY - Hexagonal shape prevents rolling, keeping your workout space safe and organized.
VERSATILE DURABLE - Ideal for home gyms or fitness classes, backed by a 1-year limited warranty for peace of mind.
PRECISION WEIGHT CONTROL - Each dumbbell weighs a consistent 4.5 kg, perfect for targeted strength training.
QUICK IDENTIFY COLOR CODING - Navy blue with printed weight numbers for fast, hassle-free selection during sessions.
SECURE SWEAT RESISTANT GRIP - Ergonomic neoprene coating ensures a firm hold during intense workouts, minimizing slips.

Amazon Basics Neoprene Dumbbells come as a set of two 4.5 kg weights, featuring a no-roll hexagonal design and a sweat-resistant neoprene coating for secure handling. Perfectly color-coded and numbered for quick identification, these durable dumbbells are tailored for both home workouts and fitness classes, supported by a 1-year limited warranty.

Reviews

A**R

Good product

This has got good grip and convenient to use .

6.09.2025

S**A

Quality product 👍

Best quality, anti slip, accurate weight 👍

6.09.2025

J**L

value for money

good product

23.07.2025

A**R

Everyone should have it

Good product

16.09.2025

S**N

Must have for home use

Handy dumbbells for home, especially for ladies

29.07.2025

S**Y

Beautiful apperance

Product is excellent sleek good light grey color mucu to my liking. I hope to use it to the maximum.thank you

10.08.2025

P**L

Ok ok

Matte finish... With good quality rubber... But not exactly as shown glossy in the pic..Won't look premium

31.05.2025

L**

Bit overpriced

Good ones..useful..but costly

27.07.2025

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TrustScore 4.5 | 7,300+ reviews

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Brand	amazon basics
Colour	Navy Blue
Item Weight	9.73 Pounds
Material	Cast Iron, Neoprene
Special Feature	No-Roll Head
Product Dimensions	21L x 10W Centimeters
Style	4.5 KGS Each
Handle Diameter	1.25
Handle Material	Neoprene
Number of Pieces	2
UPC	843639101942 841710155839 840095875585
Global Trade Identification Number	00841710155839
Manufacturer	GADAIPUR RANDHAVA MASANDA JALANDHAR PUNJAB 144002, SUN MALLEABLE PRIVATE LIMITED
Manufacturer	SUN MALLEABLE PRIVATE LIMITED
Country of Origin	China
Item model number	DB1001
ASIN	B01LR5S6HK

amazon basics Neoprene Dumbbells, Set Of 2, (4.5 Kgs Each ) - Navy Blue

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