Travel-Friendly Educational Toys: IQ Stixx features 120 challenges. While it’s a single-player game, it’s exciting to solve challenges with others. Product details Use your mental tricks to stack the sticks! SmartGames IQ Stixx is a portable travel game that includes 120 challenges . With rules and clues provided in each challenge , players use deduction skills to figure out how to fit all of the 'stixx' on the gameboard. Challenges range from starter to extremely difficult A stacking deduction game featuring 80 challenges that is perfect for travel! Award-Winning: SmartGames is the worldwide leader in multi-level logic family games. Rubiks Gift Set (includes Rainbow Ball Magic Star Tower Twister) Good Games War Games SmartGames Cats & Boxes Travel Game With 60 Challenges For Ages 7-Adult Iq Puzzler Pro Our award-winning games offer levels of play from easy to challenging, and we pride ourselves in making family board games that are perfect for players of all ages. The model shows how antibodies are used to clump (agglutinate) red blood cells together and determine the blood type of a sample. The Blood Type Testing Model Making Kit includes enough materials for students to assemble up to 5 paper models working cooperatively Ages 7 & Up: This puzzle is perfect for kids and adults alike.