Crysol needle-free syringes are very versatile in clinical use. These syringes are used for patients who are allergic to needles and have a fear of needles. The injection principle is a high-pressure jet for subcutaneous injection of insulin, or other drugs used for subcutaneous injection. The clinical application of Crysol syringes is priced at around$1500-3000, with some variation depending on the injection model. If you need this needle-free syringe injection, you need to pour the original injected drug into this needle-free syringe to achieve its good injection.