1. This product is for practice use only. There is a hole in the blade, so it cannot be sharpened. If you are a fan of butterfly knives, this is a perfect choice.
2. Material: stainless steel
3. Full length: 22cm / 8.66 inches (approximately)
4. Handle length: 12cm / 4.72 inches (approx.)
5. Blade length: 9.8 cm / 3.74 inches (approx.)
6. Blade width: 1.7-8 cm / 0.67 inch (approximately)
7. Blade thickness: 0.15 cm / 0.06 inch (approximately)
8. Hardness: 56HRC
9. Weight: 115g
10. Surface treatment: black oxide and sanding
11. Blade material: 5Cr13MoV
