Focus on Glass Art Design, Craftsmanship Builds Quality
With over 30 years of dedication to glass art, we embed craftsmanship into every creation. Focused on superior quality, we integrate innovative design with exquisite techniques to craft high-end, aesthetic and functional glassware. Well-received worldwide and certified internationally, we offer OEM/ODM services, bringing exceptional glass art to global clients.


Galileo Thermometer:
Where Timeless Science Meets Modern Art
The Marriage of Science and Art
Based on the principles of buoyancy and density discovered by Galileo Galilei, this thermometer provides a fascinating look at physics in action. As the temperature changes, the density of the liquid shifts, causing the hand-blown glass globes to rise or fall. It’s a “living” demonstration of science that never fails to intrigue.

Sand Timer
It’s not just a timer; it’s a sculptural piece that complements modern, minimalist, or Nordic interior styles.
- The “Slow Living” Philosophy: In a world of digital distractions, the physical flow of sand promotes mindfulness. It helps users “see” time passing in a soothing, graceful way.
- Stress Relief & Focus: Watching the sand transition through multiple sections provides a “visual rhythm” that helps reduce anxiety and improve focus during work or meditation.

Solar Radidmeter
A. 100% Solar Powered (Eco-Friendly)The most significant selling point is its autonomy. It requires no batteries, no charging cords, and no electricity. It is powered entirely by light (sunlight or incandescent light), making it a perfect symbol for renewable energy and sustainability.
B. Sophisticated Glass Craftsmanship Most radiometers are hand-blown from high-quality glass. Its delicate, vintage “apothecary” look fits perfectly with various interior styles—from modern minimalist desks to classic Victorian bookshelves.

SAND PICTURE
Moving sand art pictures, also known as sand pictures, feature colorful sands that flow and transform endlessly within a sealed frame, creating mesmerizing, ever-changing landscapes like mountains, oceans, and deserts.
Endless unique patterns: Sand cascades shift with every tilt, producing non-duplicable scenes that captivate and inspire imagination, never repeating the same design
Stress-relieving tranquility
Premium craftsmanship and durability
Versatile décor and gifting
Interactive and low-maintenance

NEWTON’S CRADLE
Newton’s Cradle is a captivating desktop toy and educational device that mesmerizingly demonstrates conservation of momentum and energy through suspended steel balls.
Educational Physics Demo: Visually illustrates core principles like elastic collisions, momentum transfer, and Newton’s Third Law—ideal for classrooms, students, or science enthusiasts to grasp abstract concepts in a hands-on way.
Elegant Executive Toy: Sleek metal design with high-quality, nearly perfect spheres ensures smooth, efficient motion with minimal energy loss, making it a stylish office accessory.
Endless Fascination: Lift one (or more) balls to trigger chain reactions where only the opposite ball swings out, repeating hypnotically—perfect for all ages.

SAND PENDULUM
Calming and therapeutic effects
Educational physics demonstration: Visibly illustrates , harmonic motion, Newton’s Laws, kinetic-to-potential energy conversion, friction, and even Earth’s rotation, forming curves that meet at right angles.gravitymomentum
Portable and stylish design
Long-lasting swings

FITZROY STORM GLASS
The storm glass is a closed glass container, typically shaped like a raindrop, filled with a
supersaturated mixture of distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor
How to Read the Crystals
- Clear liquid: Clear skies
- Cloudy liquid: Cloudy skies with chance of rain
- Small dots in the liquid: Fog or high humidity
- Cloudy with stars: Thunderstorms
- Small stars on sunny, cold days: Snow
- Large flakes: Overcast on warm days, snow in winter
- Crystals at the bottom: Frost
- Threads near the top: Windy conditions

Magnetic Sand Timer with Magnetic Base
This functional desk toy doubles as stunning decor, sparking curiosity and wonder. Add it to your collection for endless entertainment!
Freestanding design
Hypnotic visuals: Watch ferrous filings stack into stalagmite, porcupine-like spikes, or unique sculptures with every flip— a new pattern every time.
Compact size: Approximately 12-22cm tall (7x7cm base), perfect for desks, classrooms, or tabletops without taking much space.
TimingEducational value: Demonstrates in action—great for ages 10+ (not a toy; glass construction).magnets and magnetic fields

SEALIFE BALL
Miniature Ocean Ecosystem
Low-Maintenance Decorative Piece: Requires minimal care while providing a living, breathing desktop or shelf ornament
Educational Value: Demonstrates ecological principles and photosynthetic processes through observable natural processes
Eco-Friendly Home Décor: Sustainable alternative to traditional decorative items
Air-Purifying Living Display
Stress-Relief Aquatic Companion: Observing the micro-ecosystem provides calming, meditative appeal
A commitment to innovation and sustainability
Glassman is a pioneering company that seamlessly blends creativity with functionality, redefining excellence in glass crafts.


One-Stop Custom Glass Service
Founded in 1997, Kleisman carries forward more than 30 years of exquisite glass craftsmanship.Our products enjoy great popularity across Europe, America and Japan, with prominent display in top retail stores across Japan.Officially certified by Walmart and Disney, we also hold SA8000 and ISO9000 international management system certifications.As a direct factory supplier, we provide highly competitive pricing and flexible OEM/ODM customization services,delivering premium glass products and comprehensive one-stop solutions to clients worldwide.










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