Version 4 of question, due to need to shape an answer to a posted 
comment and simplification of cancelled question . 
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 I would like to form an answer to a posted comment to Question 
ID:212134 -- related to a product shown at 
http://www.geocities.com/emailerss/  
.  
 For that purpose please do the following:  
-Assume that the product is offered in drug stores, grocery stores;  
-Assume a professional quality of the site 
http://www.geocities.com/emailerss/ 
  
  
-Please provide the following:  
1--a comparison of the product at  
http://www.geocities.com/emailerss/  
against disposable product like the one shown at  
http://www.walgreens.com/store/product.jhtml?PRODID=357331&CATID=100206
 
2--a guess of yours of the percentage of string-floss users preferring
to carry in their pocket/wallet or have always in their immediate  
vicinity the product at 
 http://www.geocities.com/emailerss/ 
   
3--your choice of product between the two above you would recommend to
others -- if you feel you want to and are allowed to answer such a
question.