Babolat Babol Color Stencil Ink Black applicator makes it easy to apply a stencil to your racquet with its felt tip. The felt tip of the Babolat Babol Color Stencil Ink Black establishes consistent ink flow without the hassle of excess ink. The Babolat Babol Color Stencil Ink Black water based ink can be used for marking logos or fun designs on the strings.