Helps the engine with cooler air for better throttle response and higher burst power. Lightweight, high-altitude racing performance specifications. Black flexible tube, washable, Extendable to 39 inches, 360 degrees fully flexible Suitable for most vehicles with a 63mm (2.5in) intake pipe Product Name: Car modified intake air duct extension tube can be bent 63mm General section Product weight: 230g/Pieces Product packaging: PP transparent bag Product description: Product is a universal model, suitable for brake air duct and engine intake air duct when the size is correct. Color: Black Material: Rubber Size: Product specifications: caliber: 63mm Package Contents: 2 * Air Duct Hose Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.