General description Designed for effective tightening and holding, the Knee Clamp Tightening Hand Tool offers a holding capacity of about 90 kg. This tool features a quick-release mechanism and an anti-slip design, making it ideal for various applications. Technical specifications Holding capacity: About 90 kg Quick release mechanism Anti-slip design Usage Ideal for securing mosquito nets and other applications requiring strong clamping. Measure the inner frame of the door and ensure to purchase a size of at least (width + 4) x (height + 4). It is recommended to choose a larger size rather than a smaller one for better fit.