528 Custom Goon Caps by Signature Tips
- Seamless taper bore to enhance Flavour
- Dual Orings to Base ring & Drip Tip
- Wide Bore 11.5 Tapered to 9.5mm
- 16mm Diameter
- Standard 10mm exposed
- 22mm Base Ring
- Replaceable Coloured Sleeves
- Stainless Steel Base Ring
- original Air Flow Control