... Coin-Refund When Products Sold Out mechanical vending machine (LT-301B)Features:1. Full Mechanical Machine, No Electricity Required;2. Coin ... any coin within30mm diameter by 3mm thickness, and supports 1~4 coins per transaction.Color Available: Blue,White,Yellow ... ,Red,or customized(at least100pcs)Selection & Capacity: 1 Spiral Column ,normally 50 pieces.Applicability: Standard For Single ...