Double Back 2.0 | Jon Allen Christian but once you have them

but once you have them down

you cause the clip to detach from the cap and move along the body of the pen

and if you've got a gimmick collecting dust

this is Tic Tac Toe Pro 2

Make your spectators relive this memory

Double Back 2.0 | Jon Allen Christian but once you have themDouble Back is the strongest, most visual, and most engaging opening card effect ever created. A pair of 5s and a pair of Kings are shown front and back. You hand someone the 5s while you cleanly show the Kings. Instantly, you now hold the 5s while your helper now holds the Kings! Double Back is established as a modern day classic among 'packet effects'. There are a number of variations to Dr Daley's Last Trick, but this is the perfect version. Simple