Details the one that pops. a colourful optical illusion. this puzzle places polka dots of a complementary colour over each of the original 1000hues. playing on this figure/ground relationship produces a kinetic visual effect of vibrating, floating dots that disorients our perception of colour and creates a marvellous challenge for the mind. any ground subtracts its own hue from the colors which it carries and therefore influences. josef albers 1,000 piece jigsaw puzzle puzzle: 26.9″ x 18.9″ made in germany linen-textured finish