The POOF-Slinky 0X5409 Ideal Double 9 set allows you to play some of the more complicated domino games and adds variety to the simpler games or to allow more people to players to join in. 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 (55) tiles in this set with numbers ranging from (0) or blank to (9) and containing (10) suits (blank, 1, 2, 3, 4, 5, 6, 7, 8, 9). A double 9 is the "heaviest" domino and a double blank is the "lightest" domino value. Dominoes, like playing cards and dice, 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 9 is designed for 1-plus players and includes (55) color dot dominoes, instructions for (12) domino games and a storage tin that measures 4.8-inches by 2-inches by 7.5-inches. Ideal has been providing classic toys, magic sets, board games, tabletop games and other activities that parents trust and kids love since 1907. The POOF-Slinky 0X5409 Ideal Double 9 Color Dot Professional Quality Dominoes Set is recommended for children 6-years of age and older. POOF-Slinky, Inc. is the maker of POOF, Slinky, Ideal and Scientific Explorer Brands. Our product lines offer new exciting play with the highly successful Sno-Toys line, Fuzz oodles activity kits, as well as timeless classics, such as the original Slinky, Ideal table-top games, wood construction sets and over 400 other products.