Focus Pad strapped to Heavy Bag

[nealfreeman]

Does anyone have any familiarity or comments regarding this or a similar product? I don't have a training partner but have a 100 lb. Heavy Bag so I thought this might be useful:

www.bestbuymas.com/prdopaclta.html

ProForce Double Clapper Target

[ky0sa]

Expensive! I really like the idea, but I think I'll strap on a handheld one that I already own and spend $0 instead!