3d printed arm splint - arm brace - arm cast (now on sale at 6.95$)

I have designed an arm splint especially to be 3D printed.It consists of two parts that are joined by small screws of metric 3. It is designed for the size of an average adult arm but can be scaled to other measures.It is lighter, and allows better air circulation than traditional arm splints. In addition this 3D printed splint can be wet, it is fully waterproof.The 3D model is avaliable here: https://www.cgtrader.com/3d-print-mo...plint-3d-print Check it and give me your opinion!