Using DJI’s Osmo stabilizer with Moment’s modular system to attach better lenses to your smartphone seems like it would be a match made in heaven — except for one small problem. The weight of the Moment lenses combined with Apple’s larger phones, like the 6 Plus and 7 Plus are too heavy for the Osmo to work properly. And even with smaller models, like the iPhone 7 or iPhone X, the Osmo’s motors have to work harder to keep things leveled out, which in turn drains the battery faster.

Fortunately, Moment has a solution in the form of some official counterweights that are made out of stainless steel and designed to perfectly counterbalance the extra weight of Moment’s lenses on the Osmo. Moment is making two sizes for the counterweight: a 50g option for smaller phones like the iPhone 6, 7, 8, X, the Google Pixel, and Galaxy S8, and a heavier 100g size for bigger devices like the iPhone 7 Plus and 8 Plus, Pixel 2 XL, and Galaxy S8 Plus.

It’s not Moment’s first crack at fixing this issue. Earlier this year, the company posted a DIY solution to the problem, showing users how to manually stick 45 to 55 grams of metal to one side of the the Osmo to balance out the extra weight from the combined Plus-size iPhones and the Moment lenses. Obviously, sticking a chunk of metal to the side of your Osmo with double-sided tape isn’t really a great long-term solution, so it’s nice to see Moment stepping up to the plate with a more polished fix.

The counterweights aren’t cheap, however: Moment is charging $39.99 for each, which is definitely more expensive than taping a stack of quarters to your Osmo. But if you’re looking for a simple, long-term fix, it might be worth it. The official Moment counterweights are available for preorder now at a discounted price of $31.99, and are expected to ship around December 11th.