Ensure your club performs at an optimal level with the Groove Sharpener and Oil Kit. Simply apply the oil to the club face and use the groove sharpener device to free caked on debris while optimizing groove performance. After cleaning is complete, use the soft cloth to remove the excess debris and oil without damaging the club's finish. FEATURES: Groove sharpener device cleans grooves for optimal performance Oil helps loosen up caked in debris and grass for ease of cleaning Soft cloth completes cleaning without harming club finish Kit includes groove sharpener tool, oil and wiping cloth Maxfli