They use electric flameless heating elements—typically an electric heater or heating coil—that roast marshmallows without an open flame.
Most are made from stainless steel or plastic; several listings specifically mention stainless-steel bases and plastic bodies.
Common accessories include roasting forks or skewers and multi-compartment serving trays; some models also include a removable grill plate and a recipe guide.
Sizes range from compact countertop units a few inches tall to taller tabletop models. Example heights span about 4 inches up to 13.8 inches, and weights range from roughly 0.8 pounds to about 4.4 pounds.
Cleaning varies by model: many recommend spot- or wipe-cleaning, some parts are hand-wash only, and several models feature removable or easy-to-disassemble trays and components for easier cleaning.
Several listings mention a 1-year limited or manufacturer warranty; at least one description notes a 1-year warranty with an optional 2-year extension available via registration.
Key features for indoor use include compact, portable designs; flameless electric heaters that simply plug in; and serving trays or lazy Susan compartments that keep ingredients organized for parties and buffets.