Jollylife Enhanced Gungrey Practice Trainer Training Knife Tool with Nylon Scabbard Jollylife High Quality Butterfly Knife:1 Butterfly Knife with black Nylon Scabbard You can also use it as Screwdriver and Bottle-opener/ Multi-function wrench. Overall Length : 23cm (9'' ), Blade Length:10 cm (4'' ), Handle Length: 13cm (5'' ) Metal steel Practice BUTTERFLY Knife. You can practice with it safely.