Reusable Cusco Vaginal Specula. All Lyall Willis vaginal speculums are fully autoclaveable for sterility and made from high-grade polished stainless steel. Highly durable and robust construction ensures reliable long term use and effectively eliminates the risk of the blades breaking during use. The design features a secure and easy-to-use thumbscrew mechanism. Sizes available are virgin, small, medium, medium long and large designs.