Perfect size. 40mm(1.6 Inches) in diameter, round shaped with smooth finish.Light weight. 44g in single ball weight, Acrylic sphere is portable (50% lighter than glass) and easy to install as a ornament.Transparent. 92% light transmittance, good for visual device like len or as a lab equipment. Furthermore, the acrylic ball has the capability to resist high temp.Solid Round Acrylic Sphere BallDiameter: 40mm/1.6 inchesColor: Clear/TransparentTransmittance:0.92Material: Acrylic(PMMA)Total Weight: 88gPackage Content:2 pcs 40mm Acrylic Sphere.
eBay