This knex knife is very easy to make and is pretty strong. You will need: 10 blue connectors, 1 dark white connector, 1 green conector, 3 yellow conectors, 2 orange connectors, 2 yellow rods, 2 white rods, 3 green rods, 1 red rod, and 1 black rod.
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Step 1: The Handle
When you make the handle, switch the blue connector from side to side.
Step 2: The Blade
Just look at the picture and build what u see.
Step 3: Thats It, You Are Done
if you have any trouble building this just let me know.