Darwin HULK 2204.5 2450KV Waterproof Motor - (4-Pack)The Hulk 2204. 5 blushless motor comes with more torque and more power. The bearings are designed in stainless steel; each part is covered with a conformal coating. The structural design of the casing significantly improves the dustproof and waterproof performance and life of the motor. Package includes: 4x Motors (2450Kv) Features: Waterproof and dustproof: The stainless steel bearing, three proof paint treatment, and structural design of the shell