Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal

Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04
- CONCAVE MIRROR ---- The top and bottom is concave, this prevents the top from leaving the base as it spins, and you get a great game experience, and when the top spin on the base, can find the center much faster. FREE REPLACEMENT IF DAMGE WITHIN 6MONTHS.
- RAPID STATIC ---- When your gyro works on this base, it helps the gyro get into a stable and quiet state more quickly, once it settles down, it looks like it's "frozen" motionless in place.
- HIGH QUALITY ---- The base is made of K9 optical glass, smooth surface, no defects, chamfered edges, no burrs to prevent hand scratches. Apply to spinning top.
- EXTEND TOP SPIN TIME ---- Experiments have shown that when the top is working on a smooth surface, it can extend the spin time, reduce bottom friction, and reduce resistance.
- OPTICAL EDUCATION ---- The principle of concave mirror is reflection imaging, has the effect of focusing light source, it demonstrates the law of light reflection. The student were curious about it.This is not only a base, but also a knowledge point that student need to learn.
Attention:
Glass is fragile, do not drop on the floor.

Features:
Diameter: 100 mm. (3.93 in)
Thickness: 10 mm. (0.39 in)
Weight: 185 g. (0.4 lb)
Material: K9 glass.
Focal length: -300 mm. (-11.8 in)

Package content:
1* Spinning Top Base
Country USA
Brand Joytech
Manufacturer Joytech
Binding Toy
ItemPartNumber DZ04
Model DZ04
Color Tansparent
Size Medium
ReleaseDate 0000-00-00

Country	USA
Brand	Joytech
Manufacturer	Joytech
Binding	Toy
ItemPartNumber	DZ04
Model	DZ04
Color	Tansparent
Size	Medium
ReleaseDate	0000-00-00

Joytech 3.93'' (100mm) Diameter Spinning Top Base K9 Crystal Glass Concave Mirror, Great High End Transparent Surface Double Concave Top Accessory DZ04

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