The CLB-2020-25PM from Laser 2000 (UK) Ltd. is a Optical Lens with Wavelength Range 400 to 700 nm, Focal Length 2.5 cm(25 mm), Center Thickness 7 mm, Radius 1.298 cm(12.98 mm), Edge Thickness(ET) 2.3 mm. More details for CLB-2020-25PM can be seen below.