Can you insert the dime into the large circular area?   The 10 cent challenge is whether you can do it in 5 minutes. Very few people will accomplish this!  Its a lot harder than it may look...

Size of puzzle is 4 x 4.4 x .5"   Pieces are laser cut and etched for accuracy.  Base is floorboard for stability and scratch resistance.  Pieces are alder and maple, though these woods may vary.

Level of Difficulty: 2