UnionBasic PU Leather Desk Mat - Executive Blotter and Protective Mat & Protector Mouse Pad for Desktops and Laptops (Black, Size L) Durable and stylish, your desk's best companion; tasteful synthetic leather adds elegance to your workspace Integrated writing surface and soft flannel anti-skid foam back are infused during manufacturing for a one piece construction that will last a lifetime Provides wrist support while typing, writing, or using the mouse, and will not move once placed on a desk due to its non-slip backing Protects your desktop from scratches, stains, and spills. Easy to clean. Slip-proof velvet back Note: Large dimension of black large mat 30"x18" . Thickness is about 0.24"