Product Name: Golf Electric Scriber Finds Center of Gravity Distribution Line. Easy to Making Line: Easier to set lines on your balls; and very easy and convenient to put your ball in the tool. Better to Mark Your Balls Before the Swing: Draw and mark your golf balls and help you to identify them, it will be so helpful to mark your balls before the play. Lightweight and Portable: easy to carry, Easy way to Set Lines to check Alignment for Swing or Putting and Also the Mark will Help you Find Your Ball Easily . Perfect Gifts: Suitable for: Women, Men, Kids, Adults, Beginners, Golfer etc . Specification: Material: PP Size Chart: 9cm/3.54inch Package Includes: 1 Piece Golf Ball Liner Note: Please allow slightly errors due to manual measurement and different monitors.