Weighted, all transparent safety shield for laboratory worker protection. Polycarbonate shield is 4.7mm(3/16") thick. Three-sided construction provides stability and protects personnel from front and sides. Heavy steel perimeter base is 25mm x 48mm (1" x 1 1/2"), coated with green epoxy. Outside width is 50cm (19 1/2"), 17cm (6 1/2") front to back.