These galvanised steel plant supports can be extended as required up to around 2.1m (7') high! Simply cut a cane (not supplied) to the required height, insert the hooked end into the top of the cane, stretch the Twister to the ground & secure with the peg supplied. Ideal for climbing flowers & vegetables (including peas, runner beans & even tomatoes), indoors or outside. Diameter 32cm (13). Set of 3.