Bisaten Powerable Flying Pigeon Metal Cylinder Stirling Engine Generator Mini External Combustion Engine Model Dual Cylinder

Product parameters: Product size: 16 * 11 * 16cm/6.3 * 4.33 * 6.3 inches Net weight of product: 1089 grams/2.4 pounds Product color: black, silver Product packaging size: 26.5 * 15 * 19cm/10.43 * 5.91...