Sometimes you want to add a little more dimension & these foam tape rolls offer a perfect solution. Both rolls are 5-meters (16.4 feet long). One roll is 5mm wide x thick. The other is 5mm wide by 3mm deep. These foam rolls are perfect for 3D paper tole, and for other projects where you want to add dimension to projects. Cut them to the size you need for your project. Acid Free. Black.