Made of tough polythene with reinforced drainage holes and handles on each side, these planters fold flat for easy storage and can be reused repeatedly. Each pack includes a helpful growing guide with advice on suitable varieties and planting density for each container. For improved drainage, add gravel to the bottom of the planters. Sizes: Deep - holds 40 litres, 35cm diameter, 45cm deep. Medium - holds 35 litres, 40cm diameter, 40cm deep. Shallow - holds 38 litres, 45cm diameter, 25cm deep.