An anti-slip mat that sticks to your tray so you can carry bowls, cups, plates etc without worrying they are going to slip off. This Tenura Anti-Slip mat has an extreme hold so it will even hold firm when at an angle. At Spring Chicken we think this would be a useful aid if you have shaky hands or you are on the move in a wheelchair. The green mat is the best bet if you are visually impaired.