I haven't used it, but I've had it on display for many years. No price reduction. Even if we are in the middle of a conversation in the comments section, the person who purchases first will be given priority. We do not offer reservations. We cannot accept returns or refunds after purchase, so please check the size and condition carefully before purchasing. I sometimes go on expeditions for mountain climbing, and in those cases, I will ship the item after I return. Therefore, the shipping time is set to 4-7 days, but usually, I can ship within 1-2 days.