Features: Tool-without Installation: This set features a tool-without design, allowing easy installation without damaging surfaces, perfect for renters or those who want to keep their surfaces intact, ideal for drywall and light surfaces. Strong Expansion Feature: The expansion anchors provide reliable support, ensuring a secure hold even on drywall, perfect for hanging pictures, decorations, and other household items. strong Metal Construction: produced from high-quality metal with a protective coating, these anchors resist corrosion and build to last, suitable for prolonged use in offices, displays, and more. hand and Lightweight: Small and easy to carry, these anchors perfect for quick installations in various locations, such as displays, temporary setups, and mobile arrangements. Wide Compatibility: The anchors and expansion sleeves work with various surfaces types, addressing installation needs on different materials, making them ideal for DIY enthusiasts and professional installers. Specifications: Material: metal Size: multiple for option Package Includes: 20xExpansion Tube 20xScrews note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.