With the addition of fiberglass, the Cuisipro Fiberglass Potato Masher is stronger and more heat-resistant than traditional nylon tools. The masher quickly and easily creates a smooth mash. The extra-long arms keep your hand out of the way and its non-slip handle lets you mash potatoes in comfort without wrist or arm fatigue. Cuisipro fiberglass tools are made with 13% added fiberglass, making them stronger and more heat-resistant (up to 480 F) than traditional 100% nylon kitchen tools. Cuisipro Fiberglass tools feature ergonomic handles and are safe for nonstick cookware. Cuisipro has combined the best of commercial kitchen tool durability with elegant and ergonomic design. Dishwasher safe. Cuisipro kitchenware and kitchen utensils are backed by a 25 year warranty from Cuisipro.