The sclerotherapy needles provide controlled needle guidance through manual retraction of the needle. Additionally, the sclerotherapy needle with a metal guide for the needle tip, equipped with a distal stainless steel needle, ensures safe needle guidance even in highly angled endoscopic situations. The ergonomic handle with a Luer-Lock connection facilitates easy handling in all models and ensures a secure connection between the needle and syringe. An audible click sound when inserting and retracting the needle enhances safety during use, both for the patient and the endoscope.