Nowadays there is a big problem with getting ironworkers to build. Many of them are abroad and also the current construction boom has exhausted almost all the capacity of ironworkers in Slovakia. The solution to effectively replace 2-3 rebar binders is the RE-BAR electric binders. Up to 3000 knots can be realized on one battery charge. Tying with these pliers is 5 times faster than tying with one worker. This not only saves labour costs, but also increases the efficiency of rebar laying.