Big Hitter" Pro Training Bag PUNCHING BAGSizes available 38cm x 100cm, 38 x 120cm, 38cm x 150cm, 38cm x 180cmExtra large size is made for heavy hitters. Almost no swinging or chasing around. Complete with foam liner and compact filling .Complete with heavy duty, 4-strand seat belt straping for super secure use. Made from rip stop commercial grade material. 8mm Stainless steel D rings 680gsm rip stop reinforced outer cover, double thickness at baseCovered by a 4 year guarantee for all Ringsport pro punch bags and padsI have punching bags in my gym that are up to 14 years old and still fine.