These retractors come in three practical sizes 5¼ inch with 4x3 teeth, 6 inch with 4 teeth, and 7½ inch with 7 teeth giving surgeons a reliable range for different wound depths and tissue types. The smaller size works well for shallow or narrow incisions, while the larger 7½ inch version handles deeper cavities and broader surgical fields with ease. Each size is designed to provide steady, hands-free tissue spreading, so the surgeon can pick the best match based on the procedure and patient anatomy.