Cap Barbell's 'Rock Solid' 25-Pound Kettlebell Is 44% Off for Prime Day, and It's Perfect for So Many Exercises

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Amazon’s Prime Day 2025 deals are finally live, and for fitness lovers, there's a trove of fantastic discounts. One of the standout brands, Cap Barbell, has dropped the price on dozens of pieces of fitness equipment, including its trap barbell and utility rack. However, the one deal that’s poised to make the most noise is this 25-pound cast iron kettlebell that's over 40% off for the sale.