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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Description

💪 Elevate your home gym game with style and control!

STAY PUT DESIGN - Hexagon-shaped ends stop dumbbells from rolling away, keeping your workout zone neat and safe.
SPACE SMART STORAGE - Includes an easy-to-assemble rack to keep your dumbbells organized and ready for action.
COMFORT MEETS CONTROL - Soft neoprene coating with nonslip grip delivers maximum comfort and confidence during every rep.
COMPLETE STRENGTH TRIO - Three weight options (3, 5, 8 lbs) let you customize every workout for progressive muscle toning.
COLOR CODED CONVENIENCE - Vibrant purple, green, and yellow colors with printed weights make quick identification effortless.

Amazon Basics Neoprene Dumbbell Set includes six dumbbells in 3, 5, and 8-pound increments, featuring durable neoprene coating and hexagonal ends to prevent rolling. Designed for secure grip and easy identification with color coding, this set comes with a compact storage rack, perfect for efficient strength training at home.

Specifications

Brand	Amazon Basics
Color	Purple/Green/Yellow
Item Weight	32 Pounds
Material	Cast Iron, Polyvinyl Chloride (PVC)
Special Feature	No-Roll Head
Style	Rack with 3 Pairs (3, 5, and 8 Pound)
Handle Diameter	1.22 inch, 1.38 inch, 1.54 inch
Handle Material	Cast Iron, PVC
Number of Pieces	6
Set Name	3, 5, and 8 Pound Dumbbell Set
UPC	843639101850 841710155877 840095875530
Global Trade Identification Number	00841710155877
Manufacturer	Amazon
Item Package Dimensions L x W x H	17 x 13 x 7 inches
Package Weight	15.88 Kilograms
Item Dimensions LxWxH	15.67 x 12.01 x 6.3 inches
Brand Name	Amazon Basics
Suggested Users	women/men
Number of Items	1
Part Number	IR92004FT-32LB
Size	3, 5, and 8 pound

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