60 Rayovac Extra Advanced Hearing Aid Batteries, SIZE 312 Fast Shipping from USA Rayovac, a World Leading Manufacturer of Hearing Aid Batteries, raising the benchmark of product innovation and providing consistent, quality performance.No Battery Last longer than Rayovac Extra Advance Batteries. Providing customers with the longevity, reliability and power needed to cope with any situation.Size 312Total 60 BatteriesActive Core TechnologyUpdated PackagingOptimised DialUpgraded Larger CardImproved Tabs FOR BULK Quantities please contact us through eBay. We offer competitive pricing for bigger quantities. Shipping Policy: We ship items within 1-2 Business days after receiving payment. You should get your item within 3-5 days. Please contact us after 7-10 days if you have not received your item so we can ship it again. Customer Service & Return: If you are not happy with the product then you can return the item for full refund within 14 days after receiving the item. We always appreciate positive feedback if you are happy with the product and our service. Please contact us for any issue or if you are not happy before leaving any negative or neutral feedback. We will do our best to resolve the issue to make you happy.