These U-shaped plastic shims are made of reliable, sturdy, and durable PP material, which is not easy to break, fade, or wear. They come in a multi-color pack of 100 for ample use and sharing. The U-shaped design is suitable for spacing tiles, windows, installation, curtain walls, and other spacing requirements. With 4 thickness options to choose from, they are easy to operate and convenient for people engaged in the construction industry. A quality and reliable option for flooring installation. Features: 1. Quality Material: These U shape plastic shims mainly adopt quality PP material, reliable and stable, sturdy and secure, not easy to break, fade or wear, serving you for a long time. 2. Ample to Use and Share: Multi color for choose and abundant in quantity, convenient for you to use, replace or share, sufficient to meet your daily needs. 3. Measurement: Thickness: Blue: 1.6mm, Red: 3mm, Yellow: 4.7mm, Black: 6.2mm, for you to choose. 4. U Shaped Design: The tile spacers are designed with horseshoe and U shaped, with stable structure, suitable for spacing tiles, windows, installation, curtain walls and other spacing requirements. 5. Easy to Operate: You just need to place the prongs of the horseshoe shims in grout joint, very suitable for people engaged in the construction industry, easy and convenient. Specification: Material: PP Product Color: Blue, Red, Yellow, Black Product Size: Thickness: Blue: 1.6mm, Red: 3mm, Yellow: 4.7mm, Black: 6.2mm Product Weight: 535g, 370 g, 245 g, 130 g Package Included: 100 x U Shaped Tile Leveling Shims