Enjoy your Dominoe Game with this professional size set of double 12 NUMBERED dominoes. The color-coded numbers are embossed into the dominoes for long-lasting, wear-resistance. Big bold numbers on solid white dominoes are super easy to read and score. Great for low light situations like camping, RVer"s, or those with vision impediments. Professional dominoes measure 2 inches long, 1 inch wide and just shy of 3/8 inches thick.All double twelve dominoe sets have 91 dominoes which provides for every possible combination between 0/0, 0/1, 1/1 up to 12/12. This set is excellent for most dominoe game variations including Mexican Train and Chicken Foot. Dual sounding starter/centerpiece makes chicken crowing or choo choo train sounds by pressing on the center of the unit. Centerpiece measures 6 inches in diameter. Takes 2 AG13 (or LR44) batteries. It does come with a mediocre set of batteries which will probably require replacement early on. Includes 8 small colorful train marker and 2 chicken markers.Dominoes store in an average quality, textured vinyl covered case. (similar to almost every other vinyl case by any manufacturer on the market today.) Snap close case measures 9 x 8 x 2 1/4 inches. Includes very basic instructions. The grammar may cause your High School English teacher turn over in their grave !) This set has very good quality dominoes. Excellent for larger groups, public venues (like tavern, social club, senior center.)