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Walmart [walmart.com] has Athletic Works Wrist & Forearm Developer for $3.97. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $35+.

Product Details from Walmart:[list][*]Tone and strengthen wrists and forearms[*]Easily interchange weights to focus on the development of certain muscles[*]Wrist developer with soft foam grips for a secure hold[*]Use the forearm roller to increase cardio, build muscle and enhance flexibility