Hot 2PCS Black Metal Practice Butterfly Trainer Training Knife Dull Tool KA101<br />QTY:2PCS<br />product description:<br />Length: 22.5 CM (open)<br />Blade length: 9.9 CM<br />Blade thickness: 0.26 CM<br />Blade material: 440 c<br />Hardness: 55 to 57