Features: 1. Standard 1/2 universal interface (2 cm caliber) 2. Suitable for tank depth of 20-33 cm (Toilet bowl Squatting pan) 3. Product life has increased to 100 000 times 4. Adjustable length suitable for different height tanks 5. Self-owned lifting ball height saving water Specification: Size: Approx Product diameter is about 2cm/0.78inch British standard G1/2 Adjustable length: 20cm-30.5cm/7.8-12inch Material: ABS Optional style: plastic copper Package list: 1 * toilet inlet valve Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.