Dear Sir Madam,Size:12"Material:RubberWmLength:20 cmColor:Transparent,Silver,Black,Beige,Multi,Golden,Red,Blue,Yellow,Green,Purple,Gray,Orange,Brown,Pink,WhiteColor:Red Black blueThickness:3~5mm normal sizeProduct name:Water-resistant Neoprene 15-15.6 Inch Laptop Notebook Sleeve