Clear Packaging Pvt. Ltd. Offers Transparent Card Sealed Blisters. Clear Packaging Pvt. Ltd. Also offers blister trays, velvet trays, PVC pouches, PVC boxes and other products. Transparent Card Sealed Blisters available in different colors and sizes are generally used in packaging pharmaceutical products. Available ranges of transparent card sealed blisters are blister packaging, blister packaging material and blister foil.