Goods description:

OD: 2.98MM
Set Configuration:
1.450 × 3 horizontal wires extended outside
2.M2.5 slip nut × 2? 
3.1MM horizontal axis washers × 2?
Integration of the horizontal axis O ring 4.3mm × 2?
5. Modified to use 3 * 8 * 3MM bearings 4, replace the first wife paddle their own folder within the 4 * 8 * 3 bearings. 
Note:
1. Self-locking nut can be tightened, or lead to thread damage may lead to fire paddle! Do not use if the slip nut. 
2. Self-locking nut can be used under normal circumstances the 10th!