Getting a good hold comes down to prep and placement. These steps can help improve grip, but results may vary by surface and humidity:

1. Clean the surface: Wipe with isopropyl alcohol and let it dry. Avoid soaps that leave residue.
2. Prep the cup: Rinse the suction cup with warm water, shake off excess, and air-dry. A light dampness on the rim can help create a seal.
3. Mount carefully: Press from the center outward to push out air. If your hook has a locking lever, engage it fully.
4. Choose the right spot: Stick to smooth, non-porous areas and avoid grout lines or texture.
5. Load gradually: Wait a bit before hanging items, and keep within the posted weight rating.

In steamy spaces, attach when surfaces are cool and dry, and re-seat occasionally.

Suction cup hooks generally work best on smooth, non-porous surfaces. Compatibility can vary by product, so check the listing details. Commonly suitable options include:

• Glass and mirrors
• Glazed tile (avoid grout lines)
• Stainless steel and other smooth metals
• Acrylic, fiberglass, and some plastics

They tend to struggle on textured, porous, or matte surfaces such as painted drywall, unfinished wood, natural stone, textured tile, and wallpaper. If you can feel texture with your fingernail, a suction cup may not hold reliably.

For best results, clean and dry the surface before mounting. If your wall is textured or porous, consider a different mounting method that’s designed for that surface type.

Weight limits vary by design and size. On Walmart.com, you’ll find suction hooks rated from about 1 lb up to over 20 lbs (depending on cup diameter and locking mechanism). To choose wisely:

• Check the posted rating and select a capacity above what you plan to hang.
• Consider conditions: Humidity, temperature swings, and surface cleanliness can reduce holding power.
• Account for wet weight: Towels and loofahs get heavier when damp.
• Use smooth, non-porous surfaces and avoid overloading or tugging.

If you’re hanging delicate items, test placement first and monitor over time. You can filter by load capacity and read customer reviews on Walmart.com to find a good fit for your space.

Steam and temperature changes can loosen any suction-based product, but some simple habits can help improve performance in showers and baths:

• Mount when dry: Attach to clean, dry tile or glass before you run hot water.
• Cool the surface: If the wall is warm, let it cool so the cup can form a better seal.
• Keep spray off the seal: Angle items to reduce direct water pressure on the cup edge.
• Re-seat periodically: Remove, rinse, and reattach to refresh suction.
• Choose corrosion-resistant materials: Look for stainless or plastic hooks to handle moisture.

Performance can vary by surface and cup design, so staying within the weight rating and checking the hold occasionally is a good practice.

Most suction hooks are designed to be removable and reusable. Here’s a gentle approach that can help, understanding results depend on the surface and product design:

1. Release the seal: Lift the small tab or edge of the suction cup to let air in. Avoid prying with sharp tools.
2. Warm water helps: If it’s stubborn, warm the cup and surface with water to soften the seal.
3. Clean before reuse: Wash the cup with mild soap and water, rinse, and air-dry. Wipe the surface with isopropyl alcohol.
4. Store dust-free: Keep cups flat or with protective covers so the rim stays clean.
5. Reattach on smooth surfaces: Press firmly, expel air, and let it settle before loading.

Avoid using on textured or porous areas, and don’t hang items where a fall could cause injury.