Milestone Wand STA Handpiece for the delivery of local anesthesia to dental tissue. Model Number STA-5050-305. The Wand STA handpiece is a single use syringe used in conjunction with the CompuDent STA computer controlled dental injection system. Class I - Dangerous Wand Handpiece was mislabeled as STA handpiece. The Wand handpiece cannot be installed in the STA instrument. Feb 11, 2015 Surgical Instruments View Details →