The design of the Ultra-Pro 3 offers all the advantages of needle guidance while maintaining the tactile feel of the "freehand" technique. The guide features zero needle resistance offering smooth movement and navigation during puncture procedures. The needle guide includes a quick-release feature for easy detachment of the needle from the transducer. The guide includes two disposable inserts: a large gauge insert offering 11, 12, 13, 14 and 15 gauge selection; a small gauge insert offering 16, 17, 18, 20 and 22 gauge selection (19, 21 GA not available). This guide is designed for use with Ultra-Pro II or Ultra-Pro transducer brackets.