Note: There is no installation instructions, please compare with our products, including the appearance, size, and shape of the product before ordering. Thank you. High class quality and very durable,Good Working Condition and Easy to Install. Package includes:1 x air filter.1 x clamp.1 x mounting holder.2 x screws. Replacement for most air filter with 42mm / 43mm / 44mm engine inlet. Fits most air cooled 33cc -52cc minimoto style 2-stroke engines. 100% brand new and high-quality performance air filter set. Color: silver. Material: metal, plastic. Inlet diameter: approx. 44mm / 1.73 inches. Size: approx. 70 x 70 x 55mm / 2.76?? x 2.76?? x 2.17??. Replacement for most air filter with 42mm / 43mm / 44mm engine inlet. Fits for: Fits most air cooled 33cc – 43cc 47cc 49cc 50cc 52cc minimoto style 2-stroke engines. For most motorcycle, atv, quad, scooter, go kart, moped, pit bike, dirt bike, mini bike, racing bike, pocket bike, super bike, chopper etc. Fits mini chopper