ITEM NAME:Universal M18 x1.5 O2 Oxygen Sensor Extender Waterproof Spacer Bung Adapter #gib Product Description Description: Universal M18 x1.5mm O2 Oxygen Sensor Extender Waterproof Stainless Steel Extension Spacer Bung Adapter Features: Wide clamping range, dustproof and waterproof; Easy to install and use; Specifications: Gross weight: 95 g Product size: 50 x 25.5 mm/1.97 x 1.00" Color: silver Material: 304 stainless steel Applicable models: universal Note: Due to manual measurement, the dimensions will vary by a certain range. Included: 1 x Oxygen Sensor Extender.Included: 1 x Oxygen Sensor Extender. Wide clamping range, dustproof and waterproof;. Applicable models: universal. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.