Please provide a specific price when negotiating. I cannot specify the packing method or shipping time. I will not ship to addresses not registered. Belt size: Wrist circumference approximately 15cm. This item is non-functional. Repair is required for use. Sizes are listed, but I am not a professional measurer, so there may be errors. Please use these as a guide only. I will not provide more detailed size information than what is listed. I will not answer questions about the purchase date, frequency of use, or the seller's physical size. Please always comment with a specific amount when negotiating a discount. I will only consider discounts within a reasonable range. Please understand that I may decline discounts on some items due to shipping and handling fees. Operation... Defective (non-working)