Thank you for viewing. There are no noticeable scratches or stains. Operation has been confirmed. A temporary battery is included, but please replace it yourself. It's a very rare battery-powered type these days. - Brand: Bikeguy Bicycle Tail Light, IPX4 Rainproof, Lightweight Size: 40 x 36 x 14mm Weight: 15g (including battery, excluding silicone parts and Velcro) Accessories: Angle adjustment silicone parts, Velcro strap Light color: Red Brightness: Equipped with 3 LEDs of 22000mcd Body color: Clear red Battery: Lithium button battery CR2032 x 2 Lighting modes: 3 modes (Rotating → Flashing → Continuous) Lighting time: Rotating 130h / Flashing 175h / Continuous 95h Velcro mounting diameter: Diameter 14~34mm (when using silicone parts) / 17~37mm (when not using silicone parts)