Shell, smartphone case - Universal - Stepper Stepper Stepper Automatic Walking Swing Machine. Highlights Universal Stepper Stepper Swing Machine Automatic Walking Swing Machine. Stepper Stepper Stepper Machine Automatic Walking Stepper Swing Machine. The product is shipped based on the color or size of the main product page image. Specifications: This device can automatically rotate your mobile phone to increase step counts.ALLOY, PlasticPower Supply: USB charging / 4 x AA Batteries (not included) Features: Automatic Stepper, Easy to Use, Walking Swing, DurableDiameter: 11 cm/4.33"(Approx.) Total Length: 19cm/7.48"(Approx.) Notes: Due to the light and screen setting difference, the item's color and 39;