Hog rings, also called C-rings, double-loop rings, C-clips, or steel clips, are used for fast gabion panel connection and assembly. They are commonly installed with a pneumatic C-ringer tool to connect gabion cage lids to side panels or to join adjacent gabion baskets together. Compared with traditional spiral wire lacing, hog rings improve installation speed, reduce labor time, and simplify gabion cage assembly. They are widely used in gabion mesh construction where quick and secure panel fastening is required. Hog rings for gabion C-ringers are available in different specifications based on wire diameter and material type. They are a practical alternative to spiral joints and help lower installation costs while maintaining reliable panel connection strength. These gabion hog rings are easy to use and are formed without sharp edges, which helps reduce the risk of injury during installation. They are suitable for gabion basket assembly, gabion lid connection, and general gabion mesh fastening applications.

The specifications of C-rings usually match the steel wire diameter of the gabions.
| Gabion Wire Diameter (mm) | C-Ring Wire Diameter (mm) | C-Ring Size (L × W × T) | Application |
|---|---|---|---|
| 2.0–2.2 mm | 2.0–2.2 mm | Approx. 18 × 12 × 2 mm | Suitable for small Reno mattresses or light gabions |
| 2.4–2.7 mm | 2.4–2.7 mm | Approx. 20 × 14 × 2.5 mm | Common size for standard riverbank protection gabions |
| 2.8–3.2 mm | 2.8–3.2 mm | Approx. 22 × 16 × 3 mm | Suitable for large gabion cages and Galfan-coated gabions |
| 3.4–4.0 mm | 3.4–4.0 mm | Approx. 25 × 18 × 3.5 mm | Suitable for heavy-duty protection works and marine projects |
Note: The C-ring wire diameter should match, or be slightly larger than, the gabion mesh wire or selvage wire diameter to ensure secure locking strength.
