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Description
Small Hand Generator Children Experimental Apparatus for Physics EducationSmall Hand Generator Children Experimental Apparatus for Physics Education Features: . Clear Principle: The transparent plastic casing is for the clear observation of the internal structure and operating principle, manual rotation of the handle, through the gear transmission to the small generator, explaining the scientific principle that mechanical energy can be converted into electrical energy . Simple Operation: Hold the motor in the left hand,
Small Hand Generator Children Experimental Apparatus for Physics EducationFeatures:
.Clear Principle: The transparent plastic casing is for the clear observation of the internal structure and operating principle, manual rotation of the handle, through the gear transmission to the small generator, explaining the scientific principle that mechanical energy can be converted into electrical energy
.Simple Operation: Hold the motor in the left hand, turn the handle in the right hand, the motor can generate electricity, and the electric beads emit light. The faster the hand turns, the brighter the beads will be. The color of the screw joint is distinguished by red and black
.Stable Structure: There are multiple gears inside, the handle is flexible, and it will not be damaged for a long time
.Safe to Use: no-load output voltage: 6.3V output current: 0.2A; the product comes with a bulb, the bulb voltage is about 6 and the voltage is very low, which has no effect on the human body
.Can be used as a power source: Rotate the electric bead from the generator, replace the wiring, and connect to both ends of the power supply of the experimental electric appliance, which can be used as an experimental power source
.Note: Avoid moisture, prevent the coil from rot; not easy to use too much force, two turns per second is appropriate
Specifications:
.Color: As Shown
.Material: Metal＋PMMA
.Product Weight: 200g
.Package Dimensions: 20 x 15 x 10cm
.Package Weight: 220g
.Packing: Box
Package Content:
.1 x Hand Generator
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4.4 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Durable
Color: S6-muti-color
The balls are great for chewers. The squeaky didn’t last long but they are perfect for the ball launcher.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving.
In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there.
The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
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Reviewed in the United States on November 2, 2024
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
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Reviewed in the United States on May 27, 2026
★★★★★ 3
Disappointed
Color: S6-muti-color
These were great for about 20 minutes then they stopped squeaking...we have 2 left that I have saved but the other 4 do not squeak anymore...disappointed as my dog loves to squeak things...would not buy these again...My dog is only an 8lb dog too...but he can still play with the balls without the squeak...
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Reviewed in the United States on April 26, 2026
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