Home / Belay Devices / Grivel Master ProGrivel Master ProThe Grivel Master Pro is a lightweight guide-mode belay device with cooling holes for heat dissipation and horns for extra friction with thin ropes. Works as a self-locking plate for belaying seconds from above.Strengths & Trade-offsStrengthsGuide mode for multi-pitchLightweight at 89gCooling holes reduce heat buildupWide rope range 7.3–11mmTrade-offsNo assisted brakingHorns can snag in packsPlain aluminum wears faster than steelSpecificationsBrandGrivelModelMaster ProWeight89gMin Rope Diameter7.3mmMax Rope Diameter11mmPricesRetailerPriceepictv.com25.90 EURbarrabes.com26.66 EURgrivel.com30.00 EURSimilar Belay DevicesBeal Air Force 3Black Diamond ATC GuideBlack Diamond ATC-PilotBlack Diamond ATC-XPBlack Diamond Super 8DMM PivotBrowse all belay devices