The CLB-3050-100PM from Laser 2000 (UK) Ltd. is a Optical Lens with Wavelength Range 400 to 700 nm, Focal Length 10 cm(100 mm), Center Thickness 5 mm, Radius 5.19 cm(51.9 mm), Edge Thickness(ET) 2.8 mm. More details for CLB-3050-100PM can be seen below.