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Product highlights:
·Transparent Oil Tank Design: The recently launched Off-Stamp X Cube Crystal Cube 35K and SKE Crystal Edge X both use a transparent oil tank design, indicating that this design is becoming a new trend in the industry.
·The Off-Stamp X Cube Crystal Cube 35K features an e-liquid capacity of 17ml and allows up to 35,000 puffs. Despite a slight decrease in e-liquid capacity of 1ml, the number of puffs has actually increased by 10,000.
·SKE Brand's new product, the SKE Crystal Edge X, features a 2+10 design with 7,000 suction ports and has been launched in the UK market.
·Diversified appearance design: The popularization of the transparent oil tank design has allowed e-cigarette products to break away from the homogenized trend of large screen e-cigarettes in the past, presenting a more diversified design ranging from simple streamlined to futuristic mechanical styles.
【By 2Firsts】In recent days, 2Firsts has noticed a trend in the e-cigarette market, with several new e-cigarette products featuring transparent oil tanks being released. Off-Stamp has launched the Off-Stamp X Cube Crystal Cube 35K in the United States, while the SKE brand's new SKE Crystal Edge X has also entered the UK market.
Off-Stamp/SKE New Products: The Flavors for Inhalation are 35K and 7K Respectively
2Firsts has compiled product parameter information for e-cigarette products such as Off-Stamp X Cube Crystal Cube 35K and SKE Crystal Edge X, which feature transparent oil tanks. See the details in the following image:


Previously, 2Firsts had published an article introducing the series of e-cigarettes from Off-Stamp (Read more), in terms of specifications, from Off-Stamp SW9000, Off-Stamp SW16000 to Off-Stamp X Cube 25K, and now to the latest release of Off-Stamp X Cube Crystal Cube 35K, the products have been upgraded in multiple aspects.

The e-liquid capacity of the Off-Stamp X Cube Crystal Cube 35K has been increased from 13ml in the Off-Stamp SW9000 to 17ml. The number of puffs has also increased from 9000 to 35,000 accordingly, which means that approximately 2058 puffs can be taken per milliliter of e-liquid.
It is worth noting that compared to the previous model Off-Stamp X Cube 25K, the e-liquid capacity of Off-Stamp X Cube Crystal Cube 35K has decreased by 1 milliliter, while the number of puffs has increased by 10,000.
The SKE Crystal Edge X is a 2+10 design e-cigarette, as described on the Vape Sourcing distributor website. It is claimed to be able to deliver up to 7,000 puffs, which equates to approximately 583 puffs per milliliter of e-liquid.
All Adopt Transparent Fuel Tank Design, Multiple Brands Promote New Products
In terms of appearance design, the main feature of both the Off-Stamp X Cube Crystal Cube 35K and the SKE Crystal Edge X is their transparent oil tank design.

The Off-Stamp X Cube Crystal Cube 35K is the first product in this series to feature a transparent oil tank design. The SKE Crystal Edge X is another attempt by the SKE brand e-cigarette to experiment with transparent oil tank designs.

In addition to the two e-cigarettes mentioned above, several e-cigarettes with transparent oil tank designs have recently been released.


At the 2025 Dubai e-cigarette exhibition, 2Firsts has observed that over 90% of the participating brands are showcasing flavored oil products, especially the leading manufacturers, almost without exception, are using flavored oil products as their main product line. Flavored oil products are no longer just an "optional extra", but have become the core support point for brand image display and market differentiation competition. (read more)
In terms of design, Ming Oil products have broken through the previous homogenized trend of large-screen e-cigarettes, presenting a stronger diversity and recognition. From simple streamlined designs to tech-savvy mechanical styles, the "aesthetic value" of each product plays a significant role in the user experience.
As a leading global NGP media and think tank, 2Firsts is committed to providing the latest product and technology information and insights for practitioners worldwide in various categories such as e-cigarettes, heated tobacco products, and modern oral products. Through driving technological changes and innovations in global NGP products, we aim to bring about safer products and lifestyles for tobacco consumers worldwide.
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