product description: material: plastic Function: Auxiliary putter aiming Infrared light, accurate pre-judgment angle when aiming, helps to improve the accuracy of the swing (with 3 button battery delivery)" Size: 11*3.5*2cm
product description: material: plastic Function: Auxiliary putter aiming Infrared light, accurate pre-judgment angle when aiming, helps to improve the accuracy of the swing (with 3 button battery delivery)" Size: 11*3.5*2cm