Mug Muscles Beer Mug.
Beer drinking and exercise merge. Patent pending Mug Muscles is a Beer Mug with a built-in grip exerciser. It's all about sippin' and rippin'! Now enjoy a frosty brew while getting a hand-grip workout to build your grip and biceps! Molded Mug holds 24 fl. ozs. Hand wash. Do not microwave. 8 1/2 x 3 5/8 x 6 7/8"h., 11 ozs.
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