In 2026, Ackobom, based on long-term user feedback on the classic LK03 FTM STP model, officially launched two upgraded products: LK03A and LK03B.
This release uses the older LK03 as a benchmark, focusing on optimizations in two core areas: smaller size and more realistic testicular structure. The goal is to create a more natural and everyday-use-friendly FTM STP product.
From LK03 to LK03A / LK03B: Why Upgrade?
The LK03 has always been a widely used FTM STP product, accumulating a large user base in terms of stability and functionality. However, through long-term use and follow-up visits, we have also collected clear and consistent upgrade requests:
We want a smaller overall size to reduce the noticeable presence when wearing the device.
We want a more three-dimensional appearance of the testicles, visually closer to the actual anatomical structure.
We want a device that is more suitable for daily long-term wear while maintaining stable STP function.
Based on this real feedback, the LK03A and LK03B will be officially launched as new products in 2026.
LK03A / LK03B Core Upgrade Highlights
Size Optimization: Smaller FTM STP Design
Compared to the older LK03 STP:
The overall size of both the LK03A and LK03B has been reduced.
Closer to everyday proportions, suitable for extended wear.
Less noticeable under jeans, sweatpants, and slim-fit pants.
This size adjustment is especially suitable for:
Users who prefer a low-key appearance.
New users of FTM STP for the first time.
Those who want a more natural integration of the STP and packer.
Testicular Structure Upgrade: More Three-Dimensional and Realistic
The testicular area is one of the key focuses of this upgrade.
The testicular contour is fuller and more three-dimensional.
The structural layers are clearer, reducing the flatness.
The overall appearance is more natural when standing or walking.
Compared to the older LK03, the LK03A and LK03B show significant improvements in visual realism and proportional harmony.
Continuing the practical foundation of the LK03's STP design
While upgrading the appearance and size, we've retained the practical advantages that the LK03 has long been recognized for:
Stable STP structure, suitable for everyday use
A balance between softness and support
Weight and feel design suitable for extended wear
If you've used the LK03 STP before, upgrading to the LK03A or LK03B will feel more natural and comfortable.
Differences between LK03A and LK03B
Both new models share the same design philosophy, but differ slightly in details:
LK03A FTM STP
More restrained proportions
Leaning towards low-profile, practical everyday wear
LK03B FTM STP
More defined testicular shape
Emphasis on natural appearance and visual realism
Users can choose based on body type, wearing habits, and personal preference.
Who should choose LK03A / LK03B?
These two new 2026 FTM STP products are especially suitable for:
Users looking for a smaller FTM STP product
Users who find the older LK03 slightly large
Those who value a natural appearance and a sculpted testicle shape
Those looking for an STP packer suitable for everyday, long-term use
A more natural FTM STP option for 2026
The LK03A and LK03B are not a rejection of the LK03, but rather an evolution based on real needs.
Through a smaller size and a more sculpted testicle structure, we hope to achieve a more ideal balance between functionality, natural appearance, and everyday comfort in FTM STP products.
If you are comparing an upgraded version of the LK03, or looking for a more natural, smaller FTM STP, the LK03A and LK03B are worth your attention in 2026.