Features: Light weight and durability Compatible with Air Conditioner R1234yf Refrigerant System. Note: It is just a tool to convert R134a to R1234yf and cannot be used alone. Quick connection, instant conversion. Prefect practical connector for converting R134a charging hose to car R1234yf charging hose. This is High quality of metal material Easy installation, Excellent fitment and Superior Material Specifics: Type:R134a To R1234yf Adapter Connector Condition: 100% New Material:Metal Color: As Shown Fitment Type: Direct Replacement Package Contents: 2 x R134a To R1234yf Adapter Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.