Eye-catching 2D/3D lenticular postcards: Effect: 3D, 3D depth, flip, animation, and morph. Material: 75LPI ~ 161 LPI. 2D/3D lenticular postcards made by PET lenticular lens ... . The material is Polyester (PET).2) Effects of images available: 3D, 3D depth, flip, animation, zoom, morph, and itscombined effects.3) Lenticular ...