Pronto V4 Extraction Catheter, 5.5Fr, Guide Catheter Compatibility 6Fr (≥0.066"), Sheath Compatibility 5F, Guidewire Compatibility 0.014" (0.036mm), Minimum Vessel Size 1.75mm (0.068"), Working Length 138cm. Embedded longitudinal wire enhances deliverability and kink resistance U niformly large extraction lumen maximizes thrombus extraction Lubricious hydrophilic coating promotes vessel navigation and trackability Patented Silva distal tip provides vessel protection Full range of 5.5F, 6F, 7F and 8F sizes