Used a few times at home, but no longer needed, so I'm selling it. Due to its unique shape, it's good for practicing picking, but it's quite flexible for its thickness. Two types of ERGO PICK with different thicknesses: 0.7mm and 1.0mm. - Model: ERGO PICK - Thickness: 0.7mm - Thickness: 1.0mm - Brand: Electric Sound Products Thank you for looking.