Are these equal to 4, 6 or 8 lbs?

I use these for water aerobics and I’m not sure what weight these would equal. The density of the foam gives you more or less the resistance of under water pushing. The denser the foam the harder you have to push giving you the “weight” or resistance you are looking for. These are very light so I would say 4 lbs. I hope you’re not confused. I don’t go to a gym to be able to do a comparison.

which ones are 40 % water resistance

Not sure if they are 40% but work well in the water. Only thing I do not like they mark easy soft foam. I would go with closed cell bar bells next time.

ASIN	B074KWY9XY
Batteries Included?	No
Brand	BigBoss
Color	Gray
Customer Reviews	4.7 4.7 out of 5 stars (4,305)
Date First Available	21 December 2017
Features	Non-Slip
Is Discontinued By Manufacturer	No
Manufacturer	BigBoss
Manufacturer reference	unknown
Material Type	Ethylene Vinyl Acetate (EVA)
Number of Items	2
Number of Pieces	2
Product Dimensions	27.43 x 15.24 x 15.24 cm; 249.48 g
Style	gray water dumbbells

BigBoss Sports Aquatic Exercise Dumbbells Aqua Fitness Barbells Exercise Hand Bars-Set of 2

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