It works for now when shaken, but I don't know when it will stop working. It can be said that OH (Overhaul) is essential if you intend to use it. The condition of the windshield is poor, with stains, discoloration, scratches, etc. I will not be checking for more detailed sizes than those listed above. I will not answer questions about the purchase date, frequency of use, or the seller's physical size. Although it is a working product, please note that I cannot guarantee the accuracy of the time. When negotiating a price reduction, please be sure to comment with a specific amount. I will only consider price reductions within a reasonable range. Please understand that I may decline price reductions depending on the item due to shipping and handling fees.