If you are growing outside in a windy area or for any reason you want to make sure your drippers don’t move, these fixed stems will help. Specifications: Color: Black Material: Plastic Fixed Stem Length: Approx. 11cm / 4.3in Package Size: Approx. 7.7 * 5.5 * 1.5cm / 3 * 2.1 * 0.5in Package Weight: Approx. 113g / 4oz Package List: 100 * Fixed Stem