Pixnor OULII 114mm Silver Dual Flush Toilet Water Tank Push Buttons Rods Color:silver.Material:Plastic. Outer diameter of button:48mm1.89inch.Thread diameter:approx.38mm1.5inch. Total length:approx.114mm4.49inch.Rod length:approx.70mm2.76 inch. Compatiable with most dual flush toilet with 38mm hole in the cistern lid. Easy to itall and durable for use. A wondertful and practical toilet hinge replacement for choice.