ToadFish Non-tipping 10oz Rocks Tumbler The ToadFish Non-tipping 10oz Rocks Tumbler lets you keep your favorite cocktail chilled and accident free. Constructed from high grade stainless steel means these tumblers rust and puncture resistant. The double wall vacuum insulation keeps hot drinks hot and cold drinks cold right until the last sip. Smartgrip technology makes the tumbler easy to lift but hard to tip. Features a built in graduated measurements for a perfect pour and a shatter proof lid w