The A2020 is one of our top choices for small pulleys, featuring low friction, fast rolling, and lightweight design. It is perfect for a variety of activities, such as dinghies, windsurfing, and kitesurfing, that require smaller diameter lines. Designed with our patented bearing system, the Dynamic Block has twin rows of stainless-steel ball bearings running on a stainless-steel rail, providing exceptional strength and durability. In addition, the patented Ultra-Strap in our 20, 30, and 40mm blocks has a unique coining process that improves reliability and makes it more rope-friendly. The Becket in our 20 and 30mm blocks has a large central rivet that reduces weight and offers an ideal attachment for tie-off points in cascade systems.