Pop Hamburger Press | Brilliant Patty Maker With Push Lever and Nonstick Surface | Premium Nontoxic ABS and Stainless Steel Spring | Easy To Use with Complete Control Of Thickness and No Mess | 711 Excellent control of uniform patty results. Easy to use with push lever, no mess. Easy to wash. Non stick surface for effortless removal. Sturdy nontoxic ABS and anti rust stainless steel spring. Lightweight (4.7 ounces) and compact (3.8 x 4 x 3)