This is the AquaCraft 28-35-2600kV Inrunner Brushless Marine Motor.
FEATURES: Ideal upgrade motor for the AquaCraft GP-1 Ultra Mini Hydroplane
Double-shielded, permanently lubricated dual ball bearings
Gold plated 3.5mm bullet connectors
INCLUDES: AquaCraft 28-35-2600kV Inrunner Brushless Marine Motor with 3.5mm Bullet Connectors
SPECS: kV Rating: 2600RPM/V
Poles: 6
Input Voltage: 8-16V
Max Surge Current: 35A/15 seconds
Motor Diameter: 1.1" (28mm)
Motor Length: 1.37" (35mm)
Shaft Diameter: 0.125" (3.175mm)
Weight: 2.3oz (65g)