4 y/o KS Eten dropper post maintenance

Hi Here’s my first official DIY video. 4 y/o KS Eten breakdown and maintenance. Link for Amazon KS ETEN 27.2 Air Cartridge, Black =cm_sw_r_cp_tai_kYydCb07ZAJ6R KS eTen R Dropper Seatpost 27.2, 100mm Travel Black =cm_sw_r_cp_tai_l4ydCbTBVME2S