Yellow fish plastic wall plug is a fish‑shaped plastic expansion anchor with barbed anti‑rotation fins and slotted body. When the self‑tapping screw is driven in, the slotted body expands outward to grip the hole wall. The barbed fins prevent spinning inside the borehole. Material: PP / PE nylon plastic. Finishes: original yellow plastic. Suitable for solid brick, concrete, aerated block and light‑duty fixing of shelves, lamps, pictures, curtain rods and small brackets.