Features and Benefits - Low Center Of Gravity - No Belt To Adjust - Less Wobble And Side Torque - Increased Power to Gearbox And Spider ! Longer Blade Life - Only Direct-Drive Trowel In The Industry - Fully Enclosed Blade-Pitch Mechanism - Electric Deadman Switch For Safety - Heavy-Duty Gearbox Standard - The Unique Enclosed Spider assembly eliminates concrete build-up around gearbox and pitch control assembly. - Blade Replacement Clips are easily removed for quick maintenance and changing of channel mount blades. - Stabilizer Ring Prevents blade flex and keeps blades balanced for a smoother, flatter finish. - Electric Deadman Switch ensures operator safety and security.