High precision laser engraving. Easy and convenient to install and remove. An ideal photography assistant to help capture beautiful images and maintain stable shooting. This adapter converts Osmo Mobile 3/4 (OM4) for use with Hero 9. Includes counterweight iron blocks; once balanced, it reduces motor strain, resulting in smoother footage and less motor heating. Adapter set only—other accessories shown in images are not included. Specifications: Item Type: Adapter Mount Plate Material: Plastic Color: Black Quantity: 1 Set Note: No retail packaging. 1 cm = 10 mm = 0.39 inch Allow 1–3 mm error due to manual measurement. Please confirm you accept this before purchasing. Due to monitor differences, actual item color may vary from the image. Package Includes: 1 Set x Adapter