Amazon.com : Bibike Dropper Post 27.2/28.6/30.0/30.4/30.9/31.6/33.9mm x 440mm Length 125mm Travel Remote External Cable : Sports & Outdoors
Universal Cycles -- PRO Components Koryak External Dropper Post 70 [PRSP0233]
Amazon.com : JFOYH EXA Form Upgraded Speed Up 27.2mm Cable-Less Hydraulic Dropper Post, 100mm Travel Dropper Post for Road Bike/MTB/Gravel-27.2mm Diameter x 410mm Length x 100mm Travel : Sports & Outdoors