The substitution 510 drip idea is produced from Epoxy resin with 26mm peak. It is actually suited to all atomizers that match 510 drip idea.Make sure you note: there might be just a little coloration difference because of Epoxy resin material.A single piece are going to be shipped.Other Color: http://enriquefrbl048blog.pages10.com/squonker-center-post-for-2-post-24-25-by-kennedy-design-Fundamentals-Explained-15036615