They fit standard curtain rods with diameters of approximately 0.5" to 0.75". Some listings also note rod lengths up to 48".
Most 2‑pack listings include 2 hooks and four adhesive strips.
Descriptions and reviews commonly note using them for hats, bags, dog leashes, scarves and accessories. Reviewers also report using them for household and bath items, including wet and dry towels.
Limited-edition designer hooks are offered in vibrant, decorative colors (examples include Candied Plum and Arctic Freeze) to add a stylistic touch, while still providing the same damage-free installation and clean removal as standard hooks.
Listings show two common capacity levels: many medium/designer hooks are rated at about 3 pounds, while some curtain-rod holdback-style pieces are described as holding up to 10 pounds.
They use the included adhesive strips, so no tools or drilling are required. Descriptions state the hooks stick firmly and remove cleanly without leaving holes, marks, sticky residue, or other damage.