80 3-D LOGIC CHALLENGES Includes 80 puzzle cards ranging from easier to expert, offering plenty of brain-teasing fun to keep players engaged.STACK & FIT WORM PIECES INSIDE A 3-SLICE APPLE  Arrange the 5 worms and stack the three apple slices (bottom, middle, top) to close the apple properly after placing the pieces.ONE-PLAYER GAME FOR AGES 8 & UP  Solo puzzle experience aimed at players aged 8-adult; great for kids developing logic, spatial insight, concentration and visual perception.ONLY ONE SOLUTION PER CHALLENGE  Each challenge has exactly one correct way to position the worms and close the apple  solutions are included.PORTABLE & COMPLETE  Comes with the 3 apple slices, 5 worm pieces, plus a challenge booklet with all 80 challenges and solutions. Compact size, good for travel or quiet single-player play.