This screwdriver kit includes 8 different screwdriver heads, suitable for most 2-stroke carburetor engines and can help you adjust and clean easily. High quality: The screwdriver head is made of stainless steel, more durable and long-lasting. With a box and cleaning needles, easy to organize and carry, very convenient for cleaning, it is a product not only for home use but also for being a gift, very practical. Fits most 2-stroke engines and many brands, such as STIHL, Husqvarna, Poulan, Weedeater, Echo, Homelite, Ryobi etc. Great for carburetor adjustment, it is a necessity for every family.