The Orthex window boxes feature a practical self-watering system, designed to simplify plant care.​ Ideal for balconies without a roof or glass front, as well as terraces and gardens.​ Less frequent watering is needed due to the large water container.​ The measuring stick lets you know when to add more water, preventing the risk of overwatering. Punched water markings make it simple to create drainage holes, preventing water accumulation. The box's overflow protection prevents the roots from standing in water. This larger 75 cm Orthex window box offers ample room for plants. Volume: 3 L water and 10 L soil. Made in Finland, from recycled plastic.