C.R. LAURENCE SGS20CBS CRL Brushed Stainless Style 20 Slimline Series Fixed Glass On Slant and Front Only Sneeze Guard- Center. CRL Slimline Sneeze Guards are constructed of 1" (25.4 mm) stainless steel tubing. Full flange type bases are supplied for surface mounting. The fixed glass on the front and slant is secured with nylon tipped set screws in the glass fittings, which will accommodate 1/4" to 3/8" (6 to 10 mm) tempered glass. Standard finishes are brushed stainless or black powder paint. Custom finishes available on special order..