The POOF-Slinky 0X5412 Ideal Double 12 set allows you to play some of the more complicated domino games and include more people to add variety with simpler versions. These dominoes feature different color dots to help children make matches easier and includes instructions on how to play “All Fives”, “All Sevens”, “Bergen”, “Blind dominoes”, “Block And Draw Dominoes”, “Five Up”, “Bingo”, “Domino Patience”, “Five Columns”, “Five's The Limit”, “Knock-Out” and “Twelve to Go”. A domino is a small tile that represents the roll of (2) dice. The tile, commonly called a bone, is rectangular with a line down the center. Each end of the tile contains a number. There's (91) tiles in this set with numbers ranging from (0) or blank to (12) and containing (13) suits (blank, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12). A Double 12 is the "heaviest" domino and a double blank is the "lightest" domino value. Dominoes, like playing cards and dice, dominoes are simple building blocks that can be assembled in innumerable ways to create a large variety of games, ranging from simple to complex to games that require great skill and strategy. Ideal's Double 12 is designed for 1+ players and includes (91) color dot dominoes, instructions for (12) domino games and a storage tin that measures 4.8-inches by 2.8-inches by 7.5-inches. Loved by children and trusted by parents for over 100-years, the Ideal brand provides a wide variety of games, activity kits, magic sets and classic toys that parents and grandparents remember from their own childhood years. The POOF-Slinky 0X5412 Ideal Double 12 Color Dot Professional Quality Dominoes Set is recommended for children 6-years of age and older. POOF-Slinky is the manufacturer of the world famous Slinky and the top selling POOF foam sport balls in North America, both manufactured in Plymouth, MI and Hollidaysburg, PA. Ideal and Scientific Explorer are other well-known brands, rounding out the POOF-Slinky family. Visit www.amazon.com/alex-brands for more information on Alex Brands and our best-selling line of educational and entertaining products for kids.