1. The M3 screw is turned to a 1/4 screw hole, which will continue to increase the need for expansion; 2. Nickel-plated surface, smooth and bright appearance, anti-corrosion and wear-resistant; 3. Balance and adjust OSMO4/ mobile 3 stabilizers. 4. 1/4 screw to 1/4 screw hole; 5. Can be used on the stabilizer to maintain balance; size:145 x 75 x 34mm Material:Plastic + Metal colour:black Package Contents: 1 x Gimbal to Action Camera Adapter 2 x M3 30g Nickel-plated iron Counterweight 2 x 1/4 inch 20g Nickel-plated iron Counterweight Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.