E KISS Kut It Sew Straight Laser Light Guide Line for Electric Manual Scissors or Rotary Cutter, On/Off Switch, Alignment Notch, Needs 2 AAA Batteries

No more marks on fabric that will not wash out. Cutting straight is a breeze; If your ruler slips while cutting with a rotary or when your fabric is longer than your cutting board or ruler, the KISS is a helpful guide that will keep your scissors or rotary cutting on the straight Kiss laser line.