Blue Marbleized Jumbo Double 6 Dominoes measure 54x28x12mm (approx. 2"x1"x.47") Double 6 Dominoes are made of acrylic, a plastic material with outstanding strength, stiffness and optical clarity. The dominoes come with a center spinner for easier mixing. The set of 28 tiles comes packaged in an elegant black velvet case. These jumbo size dominoes measure 54 x 27 x 12mm. (approx 2" x 1 " x .47"). They feel perfect in small or large hands and are made of high density resin giving them outstanding strength, stiffness and color clarity. They come with an elegant black velvet storage case.