Suitable size - Outer diameter: 30cm - Inner diameter: 27cm. Please measure the diameter of the bottom of the pot before purchasing. This plant stand is sturdy enough to hold heavy pots. High Quality Material: Made of high quality plastic resin, very hard and durable, never aging or rusting. The resin we use is environmentally friendly and non-polluting, and does not contain any harmful substances. Unique design: It has the function of storing water to prevent the floor from getting wet after watering. Each pot has 4 wheels. Its wheels rotate 360 degrees to make your job easy and efficient, perfect for moving planters, vases and planters. Moving plants becomes very convenient and quick. Widely Used: Round tray, this plant cart can be widely used for indoor and outdoor plant pots, heavy plants, large potted trees, tall vases, whiskey barrels or heavy duty trash cans to protect your heavy duty floors. We strive to provide you with the highest quality products and the best customer experience. Made of thickened resin. The surface is smooth and easy to clean. Allows air to circulate under pots to prevent harmful fungus and mildew. High quality product 360 degree swivel castors, ideal for moving pots, vases and potted plants. Very durable and can be reused for years to meet your basic needs. Features: - Color: Black. Material: Reinforced resin - Outer diameter: 30 cm. Inner diameter: 27cm. Box contents: 2 flower boxes, 8 castors. Note: 1. The size of the pan should be less than or equal to the diameter of the bottom of the pan. 2. The weight of the pot should be less than its transport weight. 3. The wheels can be easily disassembled or assembled as needed.