Set of three: Use these outdoor planters together, or separate where needed. Great for holding your favourite plants indoors and outdoors. Stackable: Plant pots fit neatly into each other when not being use. Helps save space. Plastic shells: Garden pots are quality and suitable for indoor and outdoor use. Smooth finish is easy to clean. Minimal design: Ridged design of indoors and outside planters adds a subtle touch of texture and style into your plant display. Looks great in all spaces. Dimensions: 20H x Ф22cm. Inner pot: 19.5H x Ф21cm. No assembly required.