Here's an promotional ad that ran on Facebook during the month of January 2021, as the company received the first series of new SRTW holders. Scraperite are absolutely awesome for scraping tough barnacles without damaging the expensive bottom paint as compared to metal scrapers and scrubbing pads, and they float so they won't seep into the abyss. The different size blades make the tools great to fit into bow thrusters, between rudder and hull, around through-hull fittings, and other nooks and crannies.