9 x 11 sandpaper

The listings show the sheets as 11 inches (length) by 9 inches (width).

Across the descriptions the sheets are recommended for wood, metal, fiberglass, paint, drywall, and plastic.

Descriptions highlight several anti-clog and anti-staining features: water-based stearate coatings, non‑pigmented/no-color-dye coatings, and serrated/open-coat constructions — all noted as helping resist clogging and minimize color transfer.

Package quantities shown in the descriptions include 3, 5, 20, and 25 sheets, with pack options ranging from 3 up to 25 per pack.

The waterproof multi-grit sheets are described as assorted and include super-fine, extra-fine, and very-fine grits.

Described backings and benefits: latex-saturated, fiber-reinforced backing — improves flexibility and tear resistance; waterproof C-weight backing — resists curling in humidity; heavier weight/heavy-duty paper backing — offers greater durability.

According to the descriptions, heat-treated abrasives provide faster cutting speed, longer sanding life, and greater durability, while open-coat (serrated) construction improves resistance to clogging and can extend abrasive life.