What is a good cheap balisong trainer under $30? This will be my very first trainer. - Quora
sukevitor Practice Butterfly Knife, Balisong Training Knife, Balisong Trainer Blunt Blade Tool for Beginner Practicing Flipping Tricks, Pocket Practice Training Tool : Amazon.co.uk: Sports & Outdoors
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Best Butterfly Knife Trainer
ATWG Butterfly Trainer Knife, Rainbow Metal Practice Tool Fold flip exercise tool With Sheath (Violet) : Amazon.co.uk: Sports & Outdoors
Luoyuanjia 1 PCS Butterfly Knife Trainer durable Practice Butterfly Knife Trainer Knife Tool Practice Folding Tool Metal Practice Tool for CS GO Lovers, Beginners : Amazon.co.uk: Sports & Outdoors