NOVAROSSI ART. 28022 BATCH N. 191/20CE UNDERHEAD BUTTON FOR .21 NITRO RC ENGINESThe Novarossi Art. 28022 Batch N. 191 20CE underhead button is a high quality replacement part specifically designed for . 21 nitro RC engines. Made in Italy by Novarossi, this underhead button is compatible with nitro and glow fuel and suitable for advanced RC enthusiasts aged 12 and up. With a focus on performance and durability, this product is a must have for maintaining and upgrading your RC model vehicle. Country of Origin: Italy Brand: