Make your existing wire shelving setup taller or stack two wire shelving units together with our durable post extension kits - the smart solution for creating extra storage space without the cost of a new system. Connects two 1"dia wire shelving posts (not included) to create one continuous, taller post Comes with all splicers and bolts needed to extend four posts Unique thread pitch of 6 threads per half-inch, optimized for Shelving Inc. components (see Product Details section below purchasable options for more information) *Kits for Non-Shelving Inc. Brand Posts include four extra bolts Need a custom post height? Let us know - we can provide it for a nominal charge. Call us at 1-877-831-8885 to request yours. FREE SHIPPING. Ships Next Business Day.