40CM 6 Nums Wheel Compasses Glass Circle Circular W/ Suction Cup

the dimension diameter annotation scale of compasses is
the diameter of scale, but it s a long rod radius size, such as 40#
rod length is 20cm, the scale is 40cm, please note that 40#
diameter 40cm, 60# diameter is 60cm.

Specifications:
Diameter:4cm
Size:24x4x7.5cm(L x W x H)
Material:alloy rubber

Features:
1.Wear-resistant sucker lock, durable.
2.The scale is clear and the plan is accurate.
3.Equipped with six high hardness alloy wheel, sharp, long service life.
4.The ball shaped movable handle , anti-slip.

Use:
Step 1: draw a circle on the glass.
Step 2: after drawing a circle on the back of the glass along the
line to strike, the intensity of your control, the crack can be struck.
Step 3: in the front of the glass, the circle of some small square, easy to strike the glass.
Step 4: on the back of the glass along the small square of the line to strike a crack.
Step 5: striking the small square to take out the small square in the circle
finish

Note:
if youre the first operating, the glass from the window down, in the carton above
the operation, do not put the glass on the hard floor, easy to damage glass.

Package include:
1x Compasses Circle Circular with Suction Cup








a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a