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HDDH Butterfly Knife,Practice Butterfly Knife,Butterfly Knife Trainer,Unsharpened Blade 100% Safe for Practicing Flipping Tricks (black) : Amazon.co.uk: Sports & Outdoors
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ATWG Butterfly Knife, Balisong Training Knife, Blunt Blade Tool for Beginner Practicing Flipping Tricks, with Storage Bag and Toolkits : Amazon.co.uk: Sports & Outdoors
I want a trainer butterfly knife, but my parents really don't think it's appropriate. What should I do? - Quora
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Ideal Swan 2 Pcs Balisong Butterfly Trainer Practice Butterfly Trainer - NOT REAL - NO SHARP - Unsharpened Blade : Amazon.co.uk: Sports & Outdoors
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