StattQualm SQuape Grip Band
These handy dandy grip bands wrap around the SQuape N[duro] and give you the friction you need to loosen or tighten the juice fill mechanism. There's no knurling in order to preserve aesthetics, but sometimes that means your atomizer is hard to refill. This is a solution! Requires the SQuape N[duro] from Stattqualm to operate.