ESI  -250 Pro Style Wrap Around Clamp Professional heavy duty steel clamp that securely wraps around a 2-inch truss pipe. With a maximum weight limit of 675 lbs, the  -250 is designed for heavier fixtures such as moving heads, scanners, etc. It‘s 360-dgree wrap helps guard against the scratching of your truss. ESI  -250 Pro Style Wrap Around Clamp Features Professional heavy duty clamp. Securely wraps completely around truss 360-degrees. Fits 2-inch / 50mm truss. Max weight: 675 lbs. / 300kg.