Material:Aluminum Leaves:5 leaves Blade Size:As shown Fine workmanship Easy to install and use Durable and practical Package Includes:1 PC Replacement Fan Blade : Made from aluminum alloy which is rust-proof, wear-resisting, with good thermal conductivity.Improved warm air circulation can increase comfort and reduce wood consumption in stoves. No batteries or mains electricity required, the thermoelectric module acts as a small generator to power the fan's moto5-Blade will provide larger air volume, making it the most efficient way to heat your room from your . Widely used in hot air produced by wood-burning stoves, gas stoves, and pellet stoves. Effectively circulate hot air throughout the room Notice:Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.