Surf Excel Matic Machine Drum Descaler/Cleaning Tablets. For Front Load and Top Load Washing Machines, 6 units of 20 grams each. Surf Excel Matic Machine Drum Descalers come in concentrated tablets which are easy to use and dissolve in the machine drum completely. The superior Nano Bloom technology of the tablets helps to remove limescale and grime to give you a hygienic machine drum which also eliminates bacteria! The lime fragrance of the tablets leaves a pleasant scent in the machine drum. Simply toss 2 tablets (40 grams) into the empty machine drum and run the Tub Clean Cycle on your machine. Please do not break or crush the tablets once you remove them from the inner foil. It is suitable for front load and top load machines with metallic drums. Not recommended for semi-automatic machines with plastic drums. From the house of Surf Excel Matic, it's time you experience the convenience of cleaning your machine in a hassle-free way!