Guides Internal Cannula to injection site. Consists of a threaded cylindrical plastic pedestal molded around a piece of stainless steel tubing that extends below the pedestal. The pedestal is secured with cranioplastic cement and mounting screws. A Dacron mesh option is also available if needed as an attachment to the guide pedestal.

Pedestal Height: 8.0 mm (.315"). Pedestal Diameter. 3.5 mm (.138").