Listings show fixed tethers around 16 inches and extendable options that reach roughly 15–22 inches; overall lengths commonly fall between about 16 and 22 inches.
Common attachment styles include double-clip designs and swivel clasps that secure to car latch bars or seatbelt buckles. Some tethers use a carabiner or clip that clicks into the vehicle's seat belt female slot and connects to the dog's harness.
These tethers are marketed for dogs in general; some listings explicitly state they are suitable for small, medium, and large dogs.
Indicators of chew resistance include a braided steel core or coated wire rope, corrosion‑resistant metal clips, and explicit "chew proof" labeling in the product description.
Several listings specify a 360‑degree swivel clasp or swivel‑style hardware, which is described as preventing the tether or leash from tangling.
Tethers attach to a dog's harness with clips or a carabiner and then connect to the vehicle via latch bars, seatbelt buckles, or by clicking into the vehicle's seat belt female slot, depending on the design.
