Upgrade your R/C helicopter with the NIP NOS E-FLITE EFLH1147C Sym Carbon Main Blade Set. These high-quality propellers are compatible with a variety of scales ranging from 1:4 to 1:8, making them a versatile choice for any electric fuel type R/C helicopter. The sleek black design adds a touch of style to your aircraft, while the durable carbon material ensures long-lasting performance. Crafted with precision in China, these blades are a perfect fit for your BCP R/C helicopter. Suitable for ages 17 and up, these propellers are a must-have for any serious R/C enthusiast. Don't miss out on the chance to upgrade your helicopter's performance with these top-of-the-line blades.