KOOBOOK 5Pcs Stainless Steel Pro Boat Drive Dog For 4mm Pro Props RC Model Boat Ship

Note:
Manual measurement, with small error. Please check size in detail before purchase.
Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness.

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Package Includes: 5PCS

Stainless steel drive dog with grub screw fixing is for 4mm prop shaft rc boat.
Widely use in RC boat, brushless electric boat, electric boat, RC model DIY.
Good replacing and repair parts for RC model.
Height: 8.5mm;Inner Diameter: 4mm;Outer Diameter: 8mm
Unit conversion: 1mm = 0.0393inch