Soaks Up All The Gunk: Absorbs 40x+ its weight in inanimate scum, suntan lotion, body oils, make-up/cosmetics, pollen, etc. without absorbing any water. Our oil absorber sponge helps eliminate the inanimate scumline that forms in swimming pools, hot tubs, jetted tubs, jacuzzies and spas The Original Scum Star With Lots Of Surface Area: The unique star shape provides plenty of surface area for maximum efficiency and ensures that it won't get stuck in your water lines Easy To Use, Really Works (Unlike Others On The Market): Place one in your pool skimmer and let two float around freely (flip occasionally). A great alternative to the bug / bugs and ball / balls. Unfortunately, many people claim to sell the correct material but are actually selling cheap foam that does little to soak up the grime. Our material is backed by science and really works! Improves The Efficiency Of Your Filtration System: By absorbing inanimate scum and lotions / oils, the Scum Stars help lighten the load on your filtration system and filter, maximizing their life span and minimizing maintenance costs. Soaks up so many things you don't want in your water, making it one of the perfect hot tub accessories Value Pack For Maximum Efficiency, Made In The USA: Three pack of sponges (as shown). Each unit will last approximately one swimming season. Highly effective at an excellent value. Proudly Made In The USA!