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| Entry |
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| S-Biner, posted date unavailable [online], [retrieved Feb. 27, 2025]. Retrieved from internet: https://niteize.com/s-biner-360-slidelock-dual-carabiner (Year: 2025). |
| Swivel Double Carabiner, posted date unavailable [online], [retrieved Feb. 27, 2025]. Retrieved from internet: https://www.tombihn.com/products/swivel-double-carabiner? (Year: 2025). |
| Rotating Double Carabiner, posted date unavailable [online], [retrieved Mar. 4, 2025]. Retrieved from internet: https://www.amazon.com/Sun-Company-HikeHitch-360-Carabiner/dp/B00UHF99CS (Year: 2025). |