High-density Felt: Crafted to withstand multiple nailings without leaving visible holes. The 0.5-inch thick cork board tile can hold push pins without going through the board or breaking the wall Easy Mounting-Self Adhesive: Feature a strong self-stick adhesive that covers the entire backing. Simply peel off the adhesive paper, press firmly, and attach it easily without additional glues. Ps: make sure the wall is clean before use Frameless Felt Tiles: Frameless design allows for seamless integration, enabling you to create desired layout. Use the square felt in a patchwork or cut it into any shape you want Multi-function: Use these corkboards for pinning up important notes, messages, creative craft projects. Our felt cork boards can help you organize office, create a message center in your kitchen, or showcase artwork in your classroom Worry-free Set: 6 packs of 12x12 inch felt boards and 60 pins are included, the felt boards are wrapped in sealed plastic wrap and packed in a sturdy outer box. If you have any problems, please contact us DOLLAR BOSS Felt Cork Board Tiles, 6 Packs 12" x 12" 1/2" Thick Cork Bulletin Board Self Adhesive Corkboards for Walls with 60 Pushpins for Home Office Kitchen School Decor Display, Grey Acoustic Panels for Wall Sound Absorbing