The Sunny Health & Fitness Power Zone Power Cage is a full-sized weight cage and effective tool to give your strength training workouts a powerful boost. Pump up your weightlifting reps, push your squats, flex your trap muscles or abductors; this home gym power rack – with a 1,000 lb max carry weight – can help you make serious progressive gains! Whether you want to focus on your slow or fast twitch muscles, the Power Zone is versatile enough for a comprehensive total workout experience. Hardware peg hole diameter: 0.8 inch.