These 4025 props are perfect for your 4" toothpick build - incredibly lightweight without sacrificing durability.4025 props retain φ1.5mm shaft design, which means it needs M2 screws to lock props, while most of 4inch props are locked with nuts in the market. These props are best..
These are the same props that Surveilzone sell with the nickname of the "unbreakable props"
They are formulated from a new mix of PC & Glass that are flexible and more durable than your standard ABS or Glass and nylon composite.
we have put them to the test and they do stand up quite well..