I' m trying hard not to laugh at these things. I really like this part from their website.
Practice without dulling blades, wrap some electrical tape around the front of the ferrule and you can shoot your broadheads without dulling the blades or cutting your target all to pieces.
Or this part
No O-rings or Rubber bands, to rot or prematurely open
What would you call that thing keeping the blades shut? I' d love to see 5 shot' s test on those. I wouldn' t think those blades would hold up thru the orange let alone the drum. I also looked around the website and see no evidence of replacement blades available for them. 1 and done?