A spare part made of a high quality 1.4301 (V2A) stainless steel which is easily washable, highly durable, reduces the likelihood of corrosion and does not absorb smells. It suits the WOOKAH natural leather hose smoothly. It is compatible only with WOOKAH THREAD & GROMMETS model. MEASUREMENTS: Connector tube’s outer diameter: approx. 12 mm (+/- 1 mm). Note: It does not match the new edition of WOOKAH with ground joint connection.