The SXK Exopod/EXO Style RBA Bridge is made from 316 stainless steel, comes with 4 PCS air Pins 1mm, 2mm, 2.5mm and 3mm. This RBA is easy to build, ultra compact chamber to optimize flavors and plenty of space to build any coil. A truly versatile design that works equally well in MTL or DL with the 4 Air Pins provided. The SXK Exopo /EXO Style RBA bridge for Boro Tank, suitable for is suitable for Billet / BB / Boro Tank / Vandy Vape Pulse AIO / Cthulhu AIO / Boro Mod. More info Exopod Style RBA by SXK 316 Stainless Steel construction 316 Stainless Steel screws PEEK insulators 4.5ml capacity in Boro tank 510 connection 4 Pin airflow: 1mm, 2mm, 2.5mm and 3mm Suitable for is suitable for Billet / BB / Boro Tank / Vandy Vape Pulse AIO / Cthulhu AIO / Boro Mod QUICK LINK,Click Here>>https://www.3fvape.com/62075-.html