I recently bought a DJI Osmo 2 gimbal stabilizer and lens for my project with my iPhone 7+. I don't think I need to tell you what happened when both the phone and the lens were inserted into the gimbal. The reason you're reading this in the first place is to see if this article works to offset the weight of the phone's extra lens on the gimbal. That's how it is. This counterweight gives you the ability to adjust the balance of the gimbal by adding or removing the 4 included weights, each weighing just under 20 grams. 4 stars for build quality, not luxury but functional. I think it's worth the money for what it was made for.