No matter how small your balcony is, elho's planters can turn it into a beautiful garden in a matter of minutes.
Garden Pride Balcony Pot Holder - Hanging Railing Planters, Flower Pot Stand, Window Box Alternative, For use on balconies, fences & railings : Amazon.co.uk: Garden
CEDAR Railing Planter With Hangers for 3.5-6 Inch Rails - Etsy UK