Free Shipping RC Model Boat 4mm dual shaft assembly kit Metal Drive shaft+40/44/48mm propeller+Coupler+wrench length 50/100/150/200/250/300mm
Option description:for example,40x50x100mm, means that propeller diameter is 40mm,shaft sleeve length is 50mm, shaft length is 100mm
Material for shaft and bushing: stainless steel
Shaft sleeve outer diameter:10mm
Shaft diameter:4mm
Coupler outer diameter:9.4mm
Coupler is 3.17 to 4mm
Package include items in below picture,