🔒 World's Strongest 🔒 Designed and rigorously tested right here in Texas, MACK CLAMPS have redefined what it means to be strong. The Mack Clamps are officially The World's Strongest Collar. 🏋️‍♂️ Exact Weight Each MACK Clamp weighs a precise 1.0 pound (about half a kilo). What does this mean for you? You can now add the weight of the clamps to your Personal Record (PR) or volume training. Simply include 2.0 lbs (or 1 kg) to your lifts, making it ideal for micro-loading and perfect for beginners striving for gradual progress in the gym. 🌟 Plate Shift Absorption 🌟 Our dynamic piston and spring system absorb the shift, shocks and vibrations emanating from dropped weight plates. 🔄 Rotational Freedom 🔄 The clamp piston, which makes contact with the weight plates, enjoys the freedom to rotate. This ingenious feature prevents any undesirable rotational forces of the plates from being transferred to the Mack Clamps. 🎯 Contact Patches 🎯 The Mack Clamps contact patches have been meticulously crafted to create a calculated loading surface against the barbell sleeve, following the well-understood mechanical principle of Hertzian Loading Theory. This is what makes the Mack Clamps stronger than the rest! 💪 Axial Grip on the Bar Sleeve 💪 We've strategically spaced the contact patches 120° apart, forming a uniform grip around the barbell. This equilateral triangle design ensures that the bite against the barbell sleeve comes from all directions. 🔧 Serviceable Design 🔧 Mackey Innovations is dedicated to providing you with the best value. When the contact patches eventually wear out, simply replace them, guaranteeing you a quality grip over many years without breaking the bank. 🚀 Premium Material Selection 🚀 The Mack Clamps are constructed from corrosion resistant aerospace-grade aluminum and stainless steel, a combination that delivers extraordinary strength while maintaining a feather-light weight of just one pound.