This bag is made out of a highly durable Vinyl (650gsm) material. Using a boxing bag for fitness is an excellent strength & conditioning exercise, you get an excellent upper body workout & it is also great for cardio. Using a bag during your training regime also improves your hand-eye co-ordination. It is ideal for home use. All CHALLENGER Bags are 100% Australian manufactured.Features Australian made & designed UV Protected & anti-cracking. All straps have 50mm Polyprop webbing & reinforced boxed stitching on the straps. Our ‘D’s’ are welded 6mm Nickel plated Steel with an inner Vinyl protective cover. Our bags come with a tamper-proof self-locking zip system. All bags are sewn with 30mm gauge Nylon thread & are double stitched & reinforced. They come with an anti-drop/sag guarantee. All bags are filled with a special blend of Cottons & Wools. Comes with a carry handle. Colours: Black Material: 650gsm PVC Vinyl. Weight: 30kg per bag. Circumference: 101cm. Dimensions: 153cm (5FT).