That is tough and durable for our drain blaster.EASY TO USE. The drain blaster uses the power of high-pressure compressed air to blast away the toughest clogs in your drains in just seconds. It is reusable and can last for years and clears clogs without a need for a call to the plumber,saving you from having to pay big bucks for a plumber.
Just pump the drain blaster and squeeze the trigger, the clog is cleared instantly. Much faster than traditional plungers and snake and No more waisting time on drain openers.NO HARM, REUSABLE AND SAVE MONEY.Beats using harmful chemicals that can corrode your pipes or endanger your family! WIDE RANGE OF USE: Comes with 5cm, 6.5cm, 11.5cm, 4.3cm-11.5cm, 4 sized suckers, can be used in toilet, washbasin, bathtubs, shower, sink, squatting pan, floor drain, blocked pipes and etc.
WERSATILE AND EFFECTIVE. It can deal with various blockages caused by all sorts of rubbish such as hair, cloth, tea, leaves, grease,oil dirties and so on.With high pressure air power, it clears drains quickly and easily.Perfect for works on sinks, tubs and toilets. 
 

(1) 5cm sucker for use on small sinks, narrow pipes, and 1.5 inch drain openings.

(2) 6cm sucker for use on all sinks and drains with openings larger than 1.5inch.

(3) 11.5cm sucker for tub and shower drains.

(4) 4.3cm-11.5cm sucker for toilets and large floor drains 
 

sucker mouth and pipe mouth or pipe mouth to seal tightly, otherwise it will leak, you can add a little water so that the sucker completely immersed in the water 
 

Twitch handle cheer until hit do not go, generally more than 10.Place a suitable suction cup on the gas cylinder, align the suction cup with the mouth of the toilet or the pipe mouth, dig a hole in the middle of the black bag (or cardboard), and then set the gun head and pull the trigger.
If it is still blocked, repeat the above action;
Before used should be based on the size of the blockages