The Gemfan 5125 props is the lightest 3-blad props at the market. It is great option for ultralite frames with T-mount motors like TWIG ET5 5‘’ Toothpick Quad. More responsive and very well managed throttle control. The best thing about this prop's hub design is that it can also be used with conventional 5mm motor shafts like 1506 Motors. Packed with the T-mount hub insert adapters for 1.5mm center hole, so it can also use it on 1404 Motors and 1505 Motors.