Super Top Illuminated Reduced Aperture Trial Lens Kit is an attractive set, prepared from imported extra white lenses of high standard accuracy. The lenses are of Plano from Back Vertex Power, 20mm aperture fitted in aluminum mounts of 38mm diameter. The plus and minus mounts of different colors. Handles are provided on spheres. The lens Tray rises automatically. When opened with light control. The case is an attractive colored acrylic top with double lock. â¢ Reduced aperture lenses fitted in metal mounts with Powder Coated. â¢ Deluxe Model â¢ Consisting 225 lenses. â¢ +/- sph 32 pairs each. â¢ +/- cyl 20 pairs each. â¢ 10 Prisms, 7 Accessories.