The CT-65 Chain-It Tight is the quick easy way to tighten tire chains on all 24.5″ wheels. It provides the uniform tension tire chains need to work effectively. Each kit comes with two (2) tensioners and are stored in a rugged storage container when not in use. Keep your tire chains where they belong……on your tires. The CT-65 application is designed to fit all 24.5″ wheel applications. Semi-trucks