All stainless steel body,stainless steel roller,inside assistant chain gear,more durability Voltage:110-220VPower:0.27kwRollers:9Size:548*435*175mmNet weight:12KGAll stainless steel body,stainless steel roller,inside assistant chain gear,more durability Adjustable chain length,prevent the chain too lose to drop off All stainless steel roller hot dog grill (GRT-RG9M)