Features This adapter is made of high quality metal material, which is sturdy and durable. Support anti-backflow function, water will not flow back. Simple and convenient to use, safe and hygienic. This adapter is mainly used for scales, dental accessories. 100% brand new product, all refund if unsatisfied If you have any questions. Features: -This adapter is made of high quality metal material, which is sturdy and durable. -Support anti-backflow function, water will not flow back. -Simple and convenient to use, safe and hygienic. -This adapter is mainly used for scales, dental accessories. -100% brand new product, all refund if unsatisfied If you have any questions. Specifications: Material: Metal Size: 8.8*1.5cm/3.46*0.59in Quantity: 1pc Weight: 67g(approx.) Package Includes: 1 x Adaptor Package List