Custom Black Blank Cassette Tape iPhone 4 4s case Rubber Silicone Blank Cassette Tape design iPhone 4 4s with your own custom phrase. We can customize this case with your favorite band or saying .Just leave us an email message through Amazon when you purchase if no message is left we will print it like the sample pictures. This image is printed on metal plates using special heat activated inks that print to a high gloss permanent finish The case is made of Rubber Silicone for light impact protection. The case conforms to the iphone for a nice snug fit which will not easily come off.