ABC-STONE

Ring-Shaped Door Handle

Product Identification Manual

Model: The Donut Series / Cylindrical Collection

Material: Hand-Polished Natural Stone & Premium Alloy

Type: Silent Interior Door Lock

Function: Privacy Locking for Bedrooms and Bathrooms

Key Configuration: Includes double-sided keys for standard security

Dimensions: Backset 55mm

Compatibility: Engineered for interior wooden doors (35mm-50mm thickness)

Design Note: The minimalist cylindrical form highlights the raw beauty of the stone, providing a tactile and whisper-quiet operation for modern living spaces.


Price: $398.00
Color

All prices do not include engraving fees. Engraving will incur an additional charge of 500 per pair.

Relevant drawings and documents must be sent to customer service for verification, as some designs cannot be engraved by the machine. If you wish to customize door handles, please provide the following information to customer service for a price quote: Stone material + Style + Quantity + Customization file + Quantity

(LOGO file for engraving, any format is acceptable)

Standard logo engraving is vertical with a depth of 2-3mm. For specific depth requirements, please contact our customer service.

Gentle Use: Avoid forceful pushing or pulling; protect the stone from heavy impacts.

Stay Clear of Chemicals: Keep away from oils, acids, and harsh chemicals. Travertine is a "breathing" stone with natural pores that easily absorb stains.

Quick Clean: Wipe spills immediately. Use a damp cloth or sponge for stubborn marks.

Periodic Care: Apply a professional stone sealer regularly to maintain its luster.

The Art of Floating Stone

Unlike traditional metal-wrapped or base-mounted designs, ABC-STONE’s patented mortise-style drilling technique eliminates visible hardware. From a distance, the handle appears to drift effortlessly in the air—a seamless blend of raw stone and ethereal design that achieves a stunning "floating" aesthetic from every angle.
4 out of 5 stars

Minimalist Geometry & Natural Fluidity


The Ring-Shaped series explores the intersection of architectural precision and organic materiality. Each handle is precision-machined from solid natural marble into a perfect hollow cylinder, creating a striking "ring" silhouette that emphasizes the stone's internal veining and depth. This minimalist form allows the natural character of the marble—from deep forest greens to warm earthy ochres—to become a focal point of the doorway, offering a sophisticated visual rhythm for contemporary and high-end residential interiors.

Unique Stone Mortise and Tenon Technology

Our hardware features an innovative stone mortise and tenon joint system that precision-embeds high-strength metal anchors directly into the natural stone.

This internal reinforcement provides invisible structural integrity, ensuring a secure and stable connection between the stone handle and the door without visible screws. Available in brass or stainless steel configurations, this technology is engineered to preserve the raw, uninterrupted beauty of the stone while meeting standard installation requirements.

Precision-Engineered Protection for Global Transit

To ensure our delicate natural stone masterpieces arrive in pristine condition, we have engineered a multi-layered packaging protocol designed for the rigors of international shipping. Each product is first encased in High-Density EPE Anti-Collision Foam to absorb kinetic energy and prevent surface scratching. This is followed by an ultra-strong, 5-Layer Double-Wall Corrugated Kraft Carton, specifically selected for its superior puncture resistance and structural rigidity during long-haul sea or air freight.

Frequently Asked Questions

For more questions about products/distribution, please check the FAQ page.

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

No—under normal use, provided the internal structure is correctly engineered.

Most fracture problems stem from incorrect drilling methods, insufficient wall thickness, or drilling through areas with high porosity.
ABC-STONE systematically controls drilling locations, stone wall thickness, and internal hardware reinforcement to ensure structural stability.

Vein Cut features linear, flowing textures for a modern look. Cross Cut reveals circular patterns and natural pores for a more rustic, organic feel. Both are available in shades from Ultra-White to Classic Beige.

Our handles are compatible with 95% of standard split-type lock bodies. We strongly recommend pairing them with Magnetic Silent Latches. The quiet, smooth closing of a magnetic lock perfectly complements the heavy, premium feel of natural stone.

Yes — when the product is specified for commercial use.
This is possible, provided the structure is configured according to commercial use standards.

For restaurants, hotels, cafes, and retail spaces:
Higher levels of internal reinforcement are required.
A higher number of opening and closing cycles are necessary.
Door weight and frequency of use must be considered.
ABC-STONE will adjust the internal structural design based on the intensity of use.

No, we do not process customer-supplied stone.

This is because the density, porosity, and internal defects of externally sourced stone are uncontrollable.
To ensure safety and long-term stability, all stone must come from ABC-STONE's controlled supply system.

No—and that is intentional.
Natural travertine stone exhibits natural variations in the following aspects:
Color tone.Texture.Pore distribution
We guarantee consistency in overall style and quality, but we do not artificially eliminate these natural variations.

Yes — for distributors targeting premium projects.

Suitable applications include:
Boutique hotels, high-end restaurants, design-oriented commercial spaces, high-end custom homes.
It is not designed for low-cost, high-volume retail.

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Ethical Materials

Pure natural stone and solid metals, free from synthetic resins and harmful adhesives.