• Very effective golf putting aid to train the swing to follow a straight line while putting the golf ball. The training aid device projects a laser light aiming the hole or the target. The player can strive to follow through along the laser light and train to keep the swing straight and correct to the putting plane.
• Helps to train short and the long putts. Biggest improvement achieved is in the alignment of the putting plane, approach to the ball before hitting and follow through after hitting the ball. 
• Works great for both right and left handed golfers. Can be used indoors and outdoors
• Fine tuned laser technology providing sharp visible red line
• Attaches to all brand and models of putter
• Easy switch ON/OFF button  
• Color: Black  
• Powered by: 2 x LR44 Button Battery. This product needs two 1.5V button batteries. (Batteries are not included)
• Size (L x W x H): 6.5 x 2.5 x 2cm/2.56 x 0.94 x 0.79in (approx.)

Works with Duracel LR44 batteries