Ages 8 to Adult. The puzzle is to line up the numbers in sequential order by sliding the tiles and flipping the cylinder to reverse the numbers on top and bottom.
Watch out! Each time you flip the cylinder you reverse 6 of the 10 numbers. Once you solve Flip Side just give it a scramble and try again.... and again.... Look for the 6 additional recommended mathematical challenges inside the box.
Size of puzzle: 160mm x 75mm x 40mmBuilt in number tiles and rotating cylinder, ergonomic, easy to grip handles; conventient for travel.