Ball Marking Kit: Include 1 hemispherical tri-line stencil, a spring clamp of cross and arrow templates and 2 colorful marker pens (blue and red). Golf ball not included Easy Alignment: The firmly closed clamp encases the ball tightly and the tri-line stencil holds it stably to prevent rolling. A cinch to draw neat and straight lines clearly. 2 Marker Pens: Come with 2 permanent marking pens. They are quick-drying and fade-resistant. Ideal for making clear lines to mark your ball and align your shot. More Accurate Putt: These linear alignment tools make recognizable marks to help aim at your target accurately and improve your confidence. Greatly increase your shot possibilities. Portable & Reusable: The heavy-duty plastic stencils and the markers endure constant use. Just throw them in your golf bag to carry them anywhere due to the light weight.