The delivery is made to wait and tell the truth I thought not receive it when I contacted the seller who informed me that the product had been shipped from Hong Kong on 18/01 .. Finally received yesterday 07 / 02. Product may be, the quality is worth the price, that is to say not great. Lesser quality plastic, turn track of another time. BUT: it works as it should! And c is the essential! So I put this product four stars because for that price it was a product that works perfectly, an adjustable cord (which is not the case for all even much more expensive). short I recommend this product if you are like me want to know how you are doing rope skipping round during your session. For my part I now know I do laps in 2101 :)