These are official WRA approved whippet measuring wickets. Appropriate for WRA, CWA racing and for Lure Coursing. The wickets are 4 gauge stainless steel. Price is $100.00 US dollars, including shipping to all continental U.S. desinations, for a set of four wickets. These wickets measure whether a whippet is within the US standard, or not. They do not measure the actual height of the dog. Contact Kathy Slater at wra.nrd@gmail.com