Premium and Safe Material: Made of high quality PVC, non-toxic, odorless, environmentally friendly, flexible and durable, suitable for surfaces of most materials such as glass, plastic, wood, metal, ceramic and other smooth surfaces. Excellent corner protectors: With the thickened ball design and the hollow buffer layer in the middle of the two-layer L-shaped corner protector, the impact is effectively absorbed and the anti-collision effect ensured. Easy installation and strong viscosity: If youre using a strong acrylic adhesive that is waterproof and oil-resistant, just peel off the backing paper to install on the corners of the tabletop and just remove it with no glue residue. Package includes: 12-part spherical corner protectors, size 3.8 3.8 2.1 cm, and 12-part double-layer L-shaped corner protectors, size 4 4 1.7 cm, ideal safety corner protection for families.