DTswiss high-end banana-shaped spokes (SCO) Round hook 1.8/1.6

Banana spokes are specially shaped spokes, usually with the head and tail larger than the middle, resembling the shape of a banana.

Banana spokes: This type of spoke has a special shape, often used on sports bikes or mountain bikes, helping to increase the stiffness and durability of the wheel.

Advantages: Banana spokes have better load-bearing capacity, reduce wheel warping and increase stability when moving at high speeds or on difficult terrain.

There are 2 types using 2.0 and 1.8 feet. 
Depending on your needs, buy the right type.