Description: Type: Scuba Diving Inline Second Stage Regulator Adjustment Tool Material: Made of high quality Chrome plating Copper, durable and strong, can be used long time. Use: Connect the adjustment tool inline between the 2nd stage regulator and the low pressure hose. Application: Fit for most modern designs 2nd stage regulator which is adjust by flat slot drive. Good Accessories: Perfect adjustment tool for second stage regulator Specification: Product Name: Non adjustable, mechanical second stage impedance adjustment tool Material: Chrome plating Copper Features: Divided into 2 specifications of 3 slots and 4 slots Size Chart: 3 Slots: 5cmx1.5cm/1.97inchx0.59inch 4 Slots: 5cmx1.8cm/1.97inchx0.71inch Package Includes: 2 Scuba Diving Regulator Adjustment Tool Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you have wonderful online shopping!