The inner diameter is 38mm. Scooter go kart air filter cleaner. Inner diameter: 38mm.
Manufacturer: GOOFIT Brand: GOOFIT Product size: 9.58 x 9.58 x 9.19 cm; 160 g Product model number: P091-092 Discontinued by the manufacturer: No Product dimensions: Depth x Width x Height: 9.6 x 9.6 x 9.2 cm Product weight: 160 g
