Class Pack Of Magnifiers & Hand Lenses - 21ENC00057 offers a thoughtfully designed, durable resource for hands-on learning. Class Pack Of Magnifiers & Hand Lenses A bumper class pack of 35 assorted optical acrylic lenses and magnifying boxes. Suitable for a wide variety of magnifying needs both in the classroom and outdoors. The magnifying boxes have 0. 5 cm measuring grid. The set comes in a tough waterproof plastic storage box and contains: 24 x 35mm hand magnifiers with 5x magnification 5 x 50mm double lens hand magnifiers with 4x & 6x magnification. 2 x 63mm hand magnifiers with 3. 5x magnification 4 x 70mm magnifying boxes with 3. 5x magnification.