Filling
The main kinds of filling are the mixture of foam-rubber and rubber bits, the mixture of textile rags and yarn. The boxing sacks filled with the mixture of foam-rubber and rubber bits have inside additional tarpaulin sacks of the same shape like leather sacks and the central sack, which is used like weighting material and distribution center of weight and load. The boxing sacks filled with the mixture of textile rags and yarn; have inside additional tarpaulin sacks of the same shape like leather sacks. The filling of the mixture of foam-rubber and rubber bits is harder and resilient. The filling of the mixture of textile rags and yarn is softer and tough.
Anchorage points
There are two kinds of anchorage points:
1 variant - with the chains, from 3 to 8 chains
2 variant - with the springs, from 4 to 8 springs, which are fixed to the main plate. It revolves on its axis thanks to the built in bearing.
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