Shop Endocavity Needle Guide, For Use with Ultrsound Probes Alpinion EC3-10, EN3-10, EV3-10, EC3-10T, EV3-10T, EC3-10H, EV3-10H, EC3-10X, EV3-10X; Philips C9-4ec; Samsung EC4-9, EC4-9/10R, ER4-9, ER4-9/10ED, EV4-9, EV4-9/10ED, EVN4-9; Ultrasonix EC9-5/10