This is a standard chiga (body) with reinforced genuine leather. The tension feels to be around 7 to 8 out of 10, giving a slightly softer sound. It would be suitable for a lightweight neck or for folk music. - Materials: Snakeskin (Japanese Rat Snake) Nylon (double-layered) Wood (species unknown) Thank you for viewing. Please examine the images and only purchase if you agree to no claims and no returns.