General description RC car air filter made of rubber with fine foam mesh, durable for long-term use. The sponge with large intake can help increase the speed and prevent the cylinder from scoring, extending its life. This air filter is compatible with HSP 02028 and other 1/10 RC car models. Technical specifications Dimensions: 3.2 × 3.2 × 3.2 cm Issued Quantity: 2 Installation Easy to install and remove. Usage Lightly oil the foam element to ensure all dust particles are trapped, extending the life of your engine. Note: An air filter alone will not protect your engine.