25-Beamer-Ultra-Premium-Curved-304-Stainless-Steel-Concave-Screens-For-Tobacco-Smoking-Bowl-Pipes-0591-Inch-Size-15mm-Higher-Burning-Point-Compare-to-Brass-Mesh-Glass-Screens-Beamer-Sticker Published October 21, 2016 at 500 × 500 in 25 Beamer Ultra Premium Curved 304 Stainless Steel Concave Screens. For Tobacco Smoking Bowl Pipes 0.591 Inch Size (15mm) Higher Burning Point. Compare to Brass, Mesh & Glass Screens + Beamer Sticker