Magnet brake is the normal type. Microcast Spool AMB2520R The MB2520R allows you to choose between centrifugal and magnetic brakes, and you can install both at the same time. Material: Spool part: Ultra-super duralumin (colored by anodizing) Shaft part: Ultra-super duralumin (hard anodizing) Line capacity: 6LB φ0.205mm 55m, 8LB φ0.235mm 45m Microcast Brake AMB1520 For Microcast Spool 1520R/2520R/3520R Brake body, spacer Set of 4 magnets These are parts to convert ABU Ambassadeur 1500C/2500C/3500C series to magnetic brake specifications. This product is a dedicated brake for Avail spools. Brake adjustment is done by the number of magnets. Please use it to reduce backlash when casting lightweight lures. The main body, 4 magnets, and a spacer are included. The spacer has slits. It is not cracked. Price negotiations are not conducted.