Feb 25, 2026
Wall | Hollywood | Los Angeles
Continuous anti-climb spike installation on a perimeter wall near W Sunset Blvd in Hollywood, Los Angeles, maintaining a clean architectural look while securing the property.
Classic short dual black anti-climb spikes along a building's upper perimeter on Holmby Ave, Los Angeles — continuous, low-profile protection on an exposed ledge.
Building Perimeter | Holmby Ave | Los Angeles
An exposed upper ledge on a building along Holmby Ave in Los Angeles offered an easy foothold for anyone attempting to climb. We secured the full run with Classic short dual (black).
Securing an Exposed Ledge
Installed continuously along the parapet edge, the Classic short dual presents a dense line of pointed blades and hooks that eliminates any place to grip or rest. The black finish keeps the hardware visually quiet against the building's neutral facade.
Clean Architectural Line
Rather than a bulky barrier, the spikes form a thin, deliberate topline that preserves the building's lines while clearly signaling that the ledge is off-limits.
Summary
For exposed ledges and parapets, Classic short dual (black) delivers continuous, low-profile anti-climb protection that blends into the architecture.
Written by
Kojiro OtaniFounder of Saitani-Ya Co., Ltd. and creator of the Ninja Deterrent™ brand. Drawing on Japan's tradition of shinobi-gaeshi, he designs and manufactures anti-climb security spikes that pair real deterrence with architectural beauty — writing from first-hand experience in their engineering, production, and real-world installation.
Products Used
Product Used in This Project
Size
Type
Material
Finish Color
Price
Price on request
Required length
More Projects
Feb 23, 2026
Entry Perimeter Upgrade｜Sherman Oaks | Los Angeles
A Ninja Deterrent project showcasing anti-climb security spikes installed at a entry perimeter upgradesherman oaks location.
Feb 18, 2026
Venice Alley Residence | Venice | Los Angeles
Low-profile anti-climb spikes installed along an alley-facing metal gate in Venice, Los Angeles, securing a quiet back-alley entry point with a modern aesthetic.
Feb 13, 2026
Family Side Gate | Queens | NY
Anti-climb security spikes installed on a white family side gate in Bellerose, Jamaica, Queens, NY, blending deterrence with a clean residential aesthetic.
Feb 11, 2026
Classic Brick Side Gate | Flushing | New York
Anti-climb security spikes installed on a classic brick side gate in Flushing, New York, harmonizing traditional architecture with modern security.
Feb 5, 2026
Black Entrance Gate | Miami Beach
Anti-climb security spikes installed on a black entrance gate in Miami Beach, combining elegant design with robust security.
Column
Guides & Insights
Mar 6, 2026
The Philosophy of 'Beautiful Security' — Why Shinobi Gaeshi Are Decorative
From the tradition of functional beauty in Japanese castle architecture to the design philosophy behind Ninja Deterrent's Iris, Gothic, and Forest series. Exploring the concept of 'beautiful security' that achieves both crime prevention and aesthetic harmony.
Read more →
Mar 6, 2026
What Makes a Burglar Give Up — Insights from Ex-Offender Interview Studies
What actually makes burglars abandon a target — grounded in convicted-offender research (UNC Charlotte). Why opportunistic burglars avoid time, exposure, and physical risk, and how shinobi gaeshi turn a quick climb into a wall of time.
Read more →
Mar 6, 2026
The 4 Principles of CPTED and Japanese Architecture — 'Defensive Design' Learned from Castles
Decoding the four CPTED principles through Japanese castle architecture. Loopholes, masugata barbicans, shinobi gaeshi, and stone walls — applying ancestral wisdom to modern residential security design.
Read more →
Contact us
Questions?
For general inquiries about our products or consultation regarding installation, please contact us.
Book a meeting?
Schedule a free online consultation with our team. Pick a time that works for you — available slots are shown in your local time zone.