Osmo was tired of releasing an official counterbalance for the Mobile 3 gimbal so I was pleasantly surprised and excited to find this item recommended. Works as advertised and keeps my phone and case intact with the Moment wide angle lens as well as the Sirui anamorphic lens. It screws in and out easily, but I'd be careful when tightening for fear of breaking the gimbal threads (although that's more the Osmo's fault than the counterweight).