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ZSLST via Amazon [amazon.com] has 2-Count Lerat Rechargeable Electric Hand Warmers w/ 3 Heat Settings & USB-C Charging on sale for $13.99 – 50% off when you apply promo code FVG4QKDW at checkout = $6.99. Shipping is free w/ Prime or on orders $35+.

Note: Amazon promo codes don’t always apply seamlessly. If you run into this issue, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.