Free Shipping 10pcs Coupler Coupling Boat Motor shaft converter adapterfor RC Boat Models 3.17mm 4mm 5mm 2mm 2.3mm 6mm 6.35mm 7mm 8mm 10mm
Material:6063 aluminum alloy
You can find more dimensions from below link,
https://product/Free-Shipping-10pcs-Aluminium-alloy-coupler-for-RC-Boat-shaft-motor-connector-joint-2-2-3/2414051_32749734417.html
![10027-4](https://ae01.alicdn.com/kf/HTB1waV4NXXXXXcyaXXXq6xXFXXXF/228431444/HTB1waV4NXXXXXcyaXXXq6xXFXXXF.jpg?size=87827&height=533&width=718&hash=42232b30d6f3af21d0b9b905ad03692f)
![10027-3](https://ae01.alicdn.com/kf/HTB1rWmuNXXXXXc8XXXXq6xXFXXXE/228431444/HTB1rWmuNXXXXXc8XXXXq6xXFXXXE.jpg?size=61377&height=538&width=723&hash=641c730792f5743fac4e0587dfbc5faf)
![10027](https://ae01.alicdn.com/kf/HTB1tIuIQFXXXXa8XpXXq6xXFXXXv/228431444/HTB1tIuIQFXXXXa8XpXXq6xXFXXXv.jpg?size=112068&height=532&width=720&hash=ab8f99cb0b7b7a63d9c0a80801468fdd)
Package include:
10x Coupling
40x M4 mini screws
1x Simple wrench