"No batteries required! Solar-powered LED bicycle tail light" Automatically charges with sunlight, safe and secure night riding! ／ ・Brand new ・Instant purchase without comment OK ・Free shipping ＼ 【Solar charging, no batteries required】 Charges with sunlight, so no need for battery replacement or cost ◎ Just attach it to your bicycle and it charges automatically! 【3 selectable lighting modes】 Equipped with 3 modes: "On", "Blinking", and "Fast blinking" Can be used according to the situation! 【Small, lightweight, and easy to install】 Compact and stylish design Easy to install under the saddle or on the handlebars ♪ 【Waterproof for peace of mind】 Waterproof, so convenient for commuting, going to school, and going out ♪ (This does not mean it's okay to submerge it) ＊ Size ＊ Approx. 7cm x Approx. 5.5cm x Approx. 2.5cm Seat post diameter (seat pillar diameter): Approx. 22 - 30mm ＊ Material ＊ ABS resin Solar charging makes it easy and convenient! A reliable tail light that securely protects your safety on night roads ♪ *─────────────* #selectM_shop ↑↑ You can see all products here New products are coming in one after another! Notes ＊Although it is new, it is made overseas, so there may be some minor scratches or scuffs from transportation, please understand. ＊We are selling at the lowest possible price, so we do not offer discounts m(_ _)m ＊We will ship in simple packaging to keep the price down. ＊The actual color may differ from what you see depending on the monitor, screen, brightness, etc. that you are viewing."