A2020 and A2030 Blocks have been joined in manufacturing, creating the Linked 20mm & 30mm Single Blocks. These smaller pulleys are perfect for dinghies, windsurfing, and kitesurfing, featuring a patented bearing system with twin rows of stainless-steel ball bearings and a durable Ultra-Strap design. The central rivet provides a lightweight and rope-friendly attachment, making it ideal for use in a cascade system.