can anyone help me find an item please

[English]

if you would kindly take a look at this video from you tube the guy has his drops on some kind of scope mount system,I have seen these before somewhere,but for the life of me i cannot find it again,Iam in the UK and we dont things like that here yet
so if anyone could point me in the right direction to find one that would be great,thank you
http://www.youtube.com/watch?v=KhriXO6tuDY&feature=player_embedded#at=35

 

[nhm16]

According to this thread on longrangehunting.com referencing the same video, it's made by Leupold.

Here's the product information page:
http://www.leupold.com/tactical/products/mounting-systems-and-accessories/tools-and-accessories/retractable-ballistics-chart/

Midway has it:
http://www.midwayusa.com/viewProduct/?productNumber=220391

Edit: It's a pretty cool gadget actually.

 

[English]

many thanks

 

[NorCalMikie]

Shooting buddy has one on his HS Precision. First 100 yard shot, dead center. Pull the tape, adjust for 400 yards, dead center. Acutally pretty cool. 8)