Other uses may also include door and safe installations for leveling or holding in place while installation is being done.
There is a hard stiff plastic insert inside the wedge, this makes the wedge a breeze to insert in door.
Adopt the high strength material, with special soft board inside it, does not leak gas, can bear the pressure of 200 kilograms.
Note : Don't inflate excessively when operate, after being proped up, let the air out. Then put the triangle block.
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