Pad covered replacement Blades
- Will not rust and will not add any metals to aquarium
- Will not scratch acrylic or glass like metal blades do!
- Soft enough to reach into and clean out previousy scratched glass or acrylic
- Will clean out algae that naturally grows in such scratches!
- Will not cut the user, even if just carried in your pocket!
- Effective on even the most stubborn deposits!