Description This solid glazing frame spacer is designed for precise door and window installation, providing exceptional support and stability to prevent structural deformation. The plastic structural shims ensure optimal leveling and perfect alignment for both new construction and renovation projects, improving flatness and sealing for a comfortable living space. Features - Color: Assorted Color -Material:Plastic - Size: 7.50X4.00X1.00cm/2.95X1.57X0.39in - Size: 7.50X4.00X0.50cm/2.95X1.57X0.20in - Size: 7.50X4.00X0.30cm/2.95X1.57X0.12in - Size: 7.50X4.00X0.15cm/2.95X1.57X0.06in -Heavy load bearing capacity: our plastic shims for leveling reinforce door and window frames, preventing deformation and ensuring structural integrity in both residential and commercial installations -Stability for multiscene use: these glazing frame spacers are ideal for new builds or renovations, providing reliable support for windows and doors, keeping them perfectly aligned and improving overall home sealing -Long term durability: with exceptional weather resistance, our window glazing blocks maintain performance in outdoor environments, reducing maintenance -Quick and easy installation: door frame support shims allow for fast and precise fitting, streamlining door and window installation and saving valuable time on construction projects -Comfort enhancement: by using window support shims, you effectively minimize movement and drafts, creating more comfortable living space for your family and guestsPackage list: 40 x Plastic Shims