This is a good choice if you are a butterfly knives lover you could practice it without danger material: stainless steel whole length: approx.8.66inch/22.0cm handle length: approx.4.80inch/12.2cm blade length: approx.3.54inch/9.0Cmblade width:approx.0.67inch/1.7Cmblade thickness: approx.0.59inch/1.5cm.Material: stainless steel