他に類を見ない耐久性！ ひび割れや色あせに強く、床や器具を保護します。鋳鉄製のヘックスデザインで、バージンラバー（再生ゴムに比べ臭いが少ない）で覆われています。エンドウェイトは貫通穴付きの鋳鉄製です。機械加工されたクロームメッキのハンドルが穴に通され、エンドウェイトに溶接されています。最後に、エンドウェイトの上にラバーをオーバーモールド加工しています。
The hex shape keeps them from rolling around on the floor, which I really appreciate mid-workout, and after months of slamming them down the rubber hasn't cracked or faded at all. Definitely worth the investment for home gym use.
The rubber coating on these dumbbells is seriously tough—I've dropped them on concrete a few times and there's not a scratch or crack anywhere. The hex shape also makes them feel super stable in my hand during curls and presses.
The hex design keeps them from rolling away mid-set, which is a huge plus for my crowded garage floor, and the virgin rubber hasn't picked up a single crack after months of slamming them down. Honestly, they feel as solid as the day they arrived.