Battery

[tsaksa]

I agree with everything that was already stated.

I suggest that you go to Goodwill or some other thrift shop and buy some free weights. They always seem to have a few random pieces around. Used sporting good shops also sometimes sell extra unmatched weights individually for a modest price.

The advantage of using weight lifting weights is that if you buy them in small weight units the weight will be easily adjustable. They are also more compact, and they come with a convenient mounting hole.