Anti-rust: The shower curtain magnets are 360° covered with premium silicone. The hermetic silicone cover completely isolates the magnets inside from air and water to avoid corrosion and ensure long-term use and durability. STRONG MAGNETS: The magnetism of our curtain magnets is twice as strong as others on the market. Even for very thick fabric/plastic curtains under running water, our shower curtain magnets will attract each other tightly and not slide down. RIGHT WEIGHT: Each pair of magnetic curtain weights weighs about 102 grams (3.6 oz), which is twice as heavy as most curtain weights on the market. According to user feedback, it is the most suitable weight to keep the shower curtain liner in place and prevent it from blowing away. Anti-collision Noise Reduction: The soft silicone covers on the curtain weights act as protective layers to prevent the magnets inside from breaking into pieces if dropped, while others are easily broken due to the hard glass cover. The silicone covers can also be noise-reducing layers to dampen the sound when our curtain weights hit the bathtub, while others can cause loud, annoying noises. Wide Application: Not only as shower curtain weights, these magnets can also be used as window curtain weights to prevent the window curtain from blowing; as tablecloth weights to keep the tablecloth in place; as refrigerator magnets to attach memos and shopping lists; and as whiteboard magnets to attach notes and pictures.