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CnGlass via Amazon [amazon.com] has Select CnGlass Double Wall Insulated Coffee Mugs & Glass on sale as listed below when you apply the corresponding promo code at checkout – Shipping is free w/ Prime or on orders $35+[LIST][*]Available:[LIST][*]13.5oz Double Wall Thermo Glass Cup[LIST][*]2-Pack [amazon.com] $11.49 w/ code RJG9EE3A and $4 clipped coupon on item page