Welcome to our store! 1. Waterproof Design: The motor features a waterproof design and related waterproof processes, offering some corrosion protection and functioning normally in rain. 2. High-Torque Motor and Copper Wire Coil: A 14-step 12-slot high-torque motor. High-quality copper wire coil, maximum efficiency, temperature resistance up to 180‑200 °C. 3. Imported Ultra-Thin Silicon Steel Sheets: Excellent performance, high magnetic conductivity, high boron content, good insulation, and heat resistance. 4. Sealed Bearings: High-speed ABEC5 ultra-durable imported sealed bearings, with low friction, low noise, high precision, and long-lasting use. 5. Excellent Performance: Outstanding performance, beautiful design, compact size, providing you with an exceptional user experience. Product Type: C3530 Brushless Motor Main Material: Aluminum Alloy, Copper Product Color: Black Red Weight: Approximately 123g / 4.3oz Shaft Length: Approximately 19.5mm / 0.77in Shaft Diameter: Approximately 4mm / 0.16in Interface: Approximately 4mm / Golden Head Handle