PRICES MAY VARY. Material: Metal/Tin. The Size Is About (20x30cm) 8x12 Inches, (30x40cm) 12x16 Inches, (30x43cm) 12x17 Inches And (30x45.5cm) 12x18 Inches. Suitable For Scenes: This Size Makes The Metal Sign Very Suitable For Any Area Or Room,Restaurants,Family Kitchens,Living Rooms,Clubs,Farm Etc. This Metal Tin Sign About Medical Nursing Knowledge Has Weather Resistance And Water Resistance, And Is Easy To Hang. Each Sign Has 4 Holes For Easy Installation. If You Have Any Questions, You Can Se