Premium, heavy-duty dual diameter extendable "telescopic" plant stake for supporting tall crops, plants and flowers such as delphiniums, irises, lupins and sunflowers. These telescopic plant stakes are 1.2m long and 16mm diameter when contracted. Sitting inside the 16mm stake is a thinner 11mm diameter tube - simply twist open the screw lock to extend this tube to a total plant stake length of 2.1m. The screw lock allows you to adjust the plant stake to any length, helping you support plants as they grow. The dual diameter design follows the natural growth of your plant, giving stronger support at the base and more delicate support to the thinner shoots and tips. Precision spiked ends ensure easy ground staking, while the recessed cross tips support wires, allowing you to build fences, espalier fruit trees and support climbing plants.