Pen-Style Brushes with Aluminum Handles
(Set of 2)
Precision Cleaning for Tight Spaces

This is a standalone product
and is not designed to connect
to the Suction Brush Unit.
Features (Pen-Style Design)
• Designed to be handled like a pen.
• Easy to control for precise,
targeted cleaning.

Recommended Uses
• Bathroom door louvers and ventilation grilles
• Narrow gaps around kitchen range hoods and exhaust fans
• Tight spaces that conventional brushes cannot reach




Bristle Material (Nylon 66)
Why We Chose Nylon 66
• The Right Balance of Firmness
and Flexibility
Each bristle is 0.8 mm in diameter
and 20 mm long.
After repeatedly testing various bristle
materials and lengths in real-world
cleaning work, we selected this balanced
design for professional use.
Making the bristles thicker or shorter
increases stiffness, but reduces the
flexibility needed to conform to tight spaces.
Designed for professional cleaning,
this product combines the right firmness
to scrub away dirt with the flexibility
to conform to tight spaces.
• Excellent Wear Resistance
for Long-Lasting Bristles
The bristles resist wear during daily
cleaning and are designed for
long-term use.
• Excellent Heat Resistance
Also suitable for cleaning
with hot water.
Handle Material (Aluminum)
Why We Chose Aluminum
This product is designed to reach
narrow gaps and tight spaces.
If the handle were made from resin tubing,
the pressure applied during bristle insertion
could easily cause cracks.
Even if no problems were visible during
manufacturing, cracks could develop
during use.
To withstand this pressure, a resin tube
would require sufficient wall thickness.
With a bristle-hole diameter of approximately
6 mm and a wall thickness of approximately
4 mm, the outside diameter would be
approximately 14 mm.
However, as the outside diameter increases,
it becomes more difficult to reach narrow
gaps and tight spaces.
For this reason, we chose aluminum,
which allows us to keep the handle slim
while maintaining the required strength.
This product is designed to balance
a slim profile with the strength required
for professional use.
Handcrafted One at a Time
by Skilled Brush Artisans
Each brush is handcrafted by
a skilled brush artisan.
Both ends of each aluminum tube
are individually chamfered by hand
(a process that smooths the edges)
before the bristles are inserted.
This professional-grade pen-style brush
is built to meet the quality requirements
of real-world cleaning work.


*Because part of the manufacturing process
is completed by hand, slight variations may
occur in the fine details of the finish.
These variations do not affect quality
or performance.
Specifications

A Brush for Precision Cleaning
Its slim design reaches tight spaces while providing pen-like control.
Nylon 66 bristles provide an ideal balance of firmness and flexibility. Each brush is hand-tufted by skilled brush makers.
Designed for professional use, it precisely cleans detailed areas that ordinary brushes cannot easily reach.
Specifications
Overall length: 120 mm
Aluminum handle diameter: Ø6 mm
Aluminum handle length: 100 mm
Bristle length: 20 mm
Bristle material: Nylon 66
Bristle diameter: Ø0.8 mm
Handle: Aluminum tube
Quantity: Set of 2
Recommended For
✓ House Cleaning Professionals
✓ Building Maintenance Professionals
✓ Vehicle Interior Cleaning
✓ Anyone Who Prioritizes Precision Cleaning
Rainbow Service Quality Standards
✓ Repeatedly tested in real-world cleaning environments
✓ Hand-tufted by skilled brush makers
✓ Made in Japan
Go to Purchase Page
Product Details
• Pen-Style Brushes with Aluminum Handles (Set of 2)
• Made in Japan
※ This is a standalone product and does not connect to the Suction Brush Unit.
Please Note Before Purchase
• The handle, Brush Head Joiner, and other products are not included.
• Package design may change without notice.
• Product performance and specifications will remain unchanged.
International Shipping
International shipping is currently being prepared.
