The A2030 is a 30mm dynamic block with a swivel head that is perfect for dinghies, windsurfing, and kitesurfing due to its low friction and fast rolling abilities. It is lightweight yet strong, making it an ideal choice for smaller diameter lines and applications requiring constant sheave movement. The built-in swivel pin allows for easy change of direction in pulling forces, while the patented bearing system with stainless-steel ball bearings provides superior load-carrying ability and longevity. With a large central rivet for a rope-friendly attachment, this block is also great for use in cascade systems.