With its solid construction, safe for acrylic* blades, and molded-in fiberglass handles, the AquaBlade looks beautiful and works beautifully. AquaBlade long scrapers feature solid fiberglass handles. Instead of using glues that break-down like other scrapers, the AquaBlade handles are v-grooved from the side and inserted into the head of the scraper during the injection molding process. Under thousands of pounds of pressure the handle is fused to the head becoming a part of the molded piece. The AquaBlade is injected molded as a solid piece of plastic which keeps water from entering the unit while using. This means no hollow handles and drizzling of excess water when removed from the aquarium. And without trapped aquarium water inside the scraper, it will never develop odors from growing bacteria. By utilizing virgin plastic in the molding process instead of re-grind or recycled plastics, the AquaBlade is much stronger and more agile than other scrapers. The first time you pick up an AquaBlade you'll notice the difference it makes. It feels strong and durable - perfect for work inside your aquarium. The AquaBlade cyan blade was created by testing countless different types of plastics and plastic blends. The results are a special self lubricating plastic that is softer than acrylic, so it will not scratch acrylic*. Constructed of 316 stainless steel, the AquaBlade metal blade is both strong and rust resistant so removing that stubborn coralline algae is a breeze. Choose between the convenient hand-held unit that's great for smaller tanks or the long unit, perfect for larger aquariums and hard to reach places. *Acrylic safe blade is necessarily soft and can therefore pick up sand or small bits of gravel if shoved too hard down into the substrate. User should check plastic blade surface periodically by running a finger or thumbnail across the surface. Some aquariums are made from low grade imported acrylic that is extremely soft and of very poor quality that can be easily scratched. User must exercise proper judgement in use and should test blade in an inconspicuous area prior to use to insure compatibility.