Product name: projector bracketMaterial: carbon steel + aluminum alloyBearing capacity: S:8.81lb L:4.40lbPTZ screw: 1/4 inch 6 mmQuickly:1. Please check the size and color before buying.2. Please note that due to different monitors, there may be slight color differences, please forgive me.3. Refer to the above data, manual measurement may be wrong, please refer to the actual product, thank you.4. This product does not include items other than the projector bracket.5. If you find any problems with our products, please feel free to contact us via email, we will solve this problem as soon as possible.6. Welcome your sharing and feedback so that we can provide you with better products and services.7. Thank you for visiting my store, click to enter my store, there will be many products for your reference, logistics, usually we will transfer 1-3, the estimated delivery time is 9-15 daysIf you have any questions during the purchase or use process, please contact us and we will reply within 24 hours, we will try our best to serve our dear customers!