The Bookmark Magnifier 100-piece bulk pack consists of 65 × 186 mm optical PVC Fresnel lenses with 0.4 mm thickness, groove pitch 0.3 mm, and a focal length of 120 mm (lens only, no protective case). Ideal for promotional gifts, bulk giveaways, classroom or organizational distribution, this bulk set is sold at wholesale pricing tiers and ships globally. Buyers often order in large quantities despite not specifying final use—whether for retail resale, marketing campaigns, or educational purposes.