Specifications Large lumen guide balancing flexibility and support Workhorse construction suitable for various anatomies and takeoffs Flexible distal segment enables you to engage for backup support Supportive secondary curve for backup support and curve retention Enhanced visualization Larger lumens to maximize contrast flow for enhanced visualization Radiopaque marker band and nylon shaft Full-wall technology construction Robust, thinner walls without compromising support or curve retention Full range of coronary and peripheral curves 5f â?? 8f sizes available Custom lengths and custom program available Launcher is available in 5, 6, 7, 8f with the following inner diameter measurements: