SharkStores offers this Universal Sticky Anti-Slip Smartphone Gel Pad 3-Pack for $10. Coupon code sdstickypads cuts the price to $2.50. With free shipping, that's $12 below the lowest total price we could find for a similar quantity of anti-slip pads elsewhere. (For further comparison, we saw just one pad for about $2 less yesterday.) It purports to leave no residue and is washable. Deal ends July 8.

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