The sealing ring is made of rubber, and it is safe and non-toxic. They are essential accessories of the garden sprayer. It can be used repeatedly and durable for long time use. _x000D_ _x000D_Features: _x000D_High quality rubber material, safe and non-toxic, odorless and durable. _x000D_They are essential accessories of the sprayer in the garden. _x000D_The sealing ring is suitable for 3/5/8L, easy to use the sealing ring. _x000D_Comes with 10 pieces of sealing ring, it can meet your need. _x000D_Reusable and durable: it can be used repeatedly and durable for long time use. _x000D_ _x000D_Specifications: _x000D_Condition: 100% Brand New _x000D_Material: Rubber _x000D_Color: Black _x000D_Weight: approx. 10g _x000D_ _x000D_Package List: _x000D_1* Sealing Ring _x000D_ _x000D_Notes:_x000D_1. Please allow 0-2cm error due to the manual measurement. Thanks for your understanding._x000D_2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1High quality rubber material, safe and non-toxic, odorless and durable 2They are essential accessories of the sprayer in the garden 3The sealing ring is suitable for 3/5/8L, easy to use the sealing ring 4Comes with 10 pieces of sealing ring, it can meet your need 5Reusable and durable: it can be used repeatedly and durable for long time use