Bags all come empty, can be filled with dry sand, beans, or steel ball fillings.
High-quality surface is wrapped with thick heavy nylon. It will not be damaged, torn, etc. when pulled, can be scrubbed for cleaning. The non-slip widened handle design has a large force area, which is beneficial to reduce the burden on the palm and make it more comfortable to use. Built-in small sandbag with adjustable weight, small sandbag for high quality sand mining and steel ball filling.