Description Made from 316 Stainless Steel Micro springs have a higher tensile load capacity and are therefore better for use in proofing against seagulls and other large birds. Where to Use On Gull Wire System. Product Speficiation Micro springs are used to attach the Gull Wire to the vertical posts. The springs maintain the tension in the seagull wire. Not recommended for use on non-counter-tensioned Gull Wire installations where the added tensile load may cause the posts to lean inwards. Use standard springs in this instance. How to Install Use 1 spring between 2 posts. Available in packs of 20, 50 or 100.