Dimensions: approximately 16 x 6.85 cm. Material: thick plastic. Colour: 5 colors (white, pink, yellow, green, sky blue,) Quantity: 25 plastic markers. Ideal for classifying plants or marking the type of seeds you are planting. Assorted colors help you choose colors for different types of plants. Write easily with permanent marker or pencil. Enough space to hold the information you need. Anti-ultraviolet, anti-aging, waterproof, very easy to stick to the ground, can be used repeatedly.