The Penn Slammer IV DX takes Penn's class leading Slammer IV up a notch. The Slammer IV DX has incorporated CNC Gear Technology and upgraded material.This material for the main gear and pinion is ultra-durable stainless steel to give best in class durability, all while retaining the smoothness you have come to expectThe additional bearing rides in the spool so the Dura-Drag (TIVl) is dually supported, and Penn has included a spare Hypalon handle knob for ultimate comfort on the water.- 9+1 Sealed Stainless Steel Ball Bearing System (2 bearings in the spool)- Hypalon spare handle knob- Improved IPH6 sealing- Hydrophobic bearing in line roller- Slammer Drag System with Dura Drag- Reduced rotor weightSPECIFICATIONSGear Ratio : 4.7:1Mono (lb/yds) : 15/490 - 20/330 - 30/220Braid (lb/yds) : 40/530 - 50/440 - 65/400Weight : 28.7oz - 814grams