Feature: 

100% Brand New and High Quality
Good absorb ability and powerful magnetic attraction.
As you move the outer magnet, the inside magnet follows,hence cleans the glass suitable for use with varying glass thickness.
The streamline design is so artistic and pleasing to the eye.
Floating design avoids lost magnets on the bottom of your aquarium and makes it convenient for use.
Non slip griped handle for improved cleaning action.
Super strong magnets for use with varying glass thicknesses. 

Non slip griped handle improves the cleaning action, while anti-scratch cleaning pads are highly efficient in removing algae from glass.

This cylinder rub very easy to use, one end of the handle with a streamlined design is on the outside of the cylinder, the other end of it, it must be placed in the tank it is, two pairs together, we can clean up the cylinder wall.
This cylinder has a brush, parents who no longer have to worry about being unfriendly small pets are attacked, no longer need to go brush chock exposed arm cylinder it! !
Color:  Blue
Size:  please check the size from below pictures

S   for <5mm Glass thickness

M  for <8mm Glass thickness

L   for <12mm Glass thickness

XL for <19mm Glass thickness

Note: Due to the large suction power of the product, when opening, first rotate 90° and then forcefully break it. After separation, do not close your fingers close to the brush surface to avoid pinching
Rotate 90° to break apart