Reflex bag aka Double ended bag lesson with James LaFond!

https://www.youtube.com/watch?v=UdpNM22dLRU

Speedbag basics with James LaFond!

https://www.youtube.com/watch?v=CQXI2Jg4WIw

https://www.amazon.com/Punishing-Art-Boxing-Ring-Survival/dp/1533592861/ref=sr_1_1?s=books&ie=UTF8&qid=1466882016&sr=1-1&keywords=james+lafond

https://www.amazon.com/Punishing-Art-James-LaFond-ebook/dp/B074Y465S7/ref=sr_1_83?s=books&ie=UTF8&qid=1511040145&sr=1-83&refinements=p_27%3AJames+LaFond