hexagonal dumbbell plastic coated men and women's home indoor fitness equipment arm exercise a pair of students 2/3/5/10kg 六角哑铃包胶男女士家用室内健身器材练臂运动一对学生2/3/5/10kg

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one 2.5-kg dumbbell weighs a total of 5 jin. one 3-kg dumbbell weighs a total of 6 jin. two 2-kg dumbbells, a pair weighing a total of 8 jin. one 4-kg dumbbell weighs a total of 8 jin. one 5-kg dumbbell weighs a total of 10 jin. two 2.5-kg dumbbells, a pair weighing 10 jin in total. two 3-kg dumbbells, a pair weighing 12 jin in total. one 6-kg dumbbell weighs a total of 12 jin. one 7.5-kg dumbbell weighs a total of 15 jin. two 4-kg dumbbells, weighing a total of 16 jin. two 5-kg dumbbells, a pair weighing a total of 20 jin. one 10-kg dumbbell weighs a total of 20 jin. two 6-kg dumbbells, a pair weighing 24 jin in total. two 7.5-kg dumbbells, a pair weighing 30 jin in total. two 8-kg dumbbells, weighing a total of 32 jin. two 10-kg dumbbells, a pair weighing 40 jin in total.