disentanglement puzzles Educational Toys WT419 Octopus Metal Ring Game Brainteaser Wisdom Challenge Intellectual Training Creative Thinking IQ Magic WT419 Octopus Metal Ring Size(Aprox.): 5 x 8cm (1 31/32"x3 5/32")Thickness:0.2cm (5/64") Intelligence game ,great challenge for kids and adults Age 6+ There are hundreds of different puzzle toys on my store. If you like my store, please add to your favorite. Thank You.