Product parameters:
Total: 32 lenses, 2 bars each for concave (-) and convex (+); red is a minus sign, black is a plus sign
Clear aperture: about 24mm (0.945”)
Sphere: +/- 0.50, 1.00, 1.50, 2.00, 2.50, 3.00, 3.50, 4.00, 5.00, 6.00, 7.00, 8.00, 9.00, 10.00, 12.00, 15.00
Product weight: 0.31 lbs (141 g)
Product dimensions: 11.2 x 1.9 x 0.2 inches (28.5 x 4.8 x 0.5 cm)