Canvas Boxing Bag Striking Sand Bag For Boxing 40x26cm : This wall-mounted sandbag is made of good quality canvas, does not pilling, is wear-resistant and durable, suitable for long-term use Sandbag can be filled with sand, iron sand, green beans, soy, anything you like to practice strength and endurance This product features sturdy stitching on the edge for durability without leaking inner filling or deformation 8 metal rings on the bag make it easy to hang on the wall, which are made of high strength material, can support the weight of boxing This product is suitable for boxing training and other sports, which greatly improves upper body strength Specification: Material: Canvas Size: 40x26 cm/15.75x10.24 inch, 40x40 cm/15.75x15.75 inch contains: 1 bag of wall sand