var pipsValuesStepped = document.getElementById('pips-values-stepped');

noUiSlider.create(pipsValuesStepped, {
    range: range_all_sliders,
    start: 0,
    pips: {
        mode: 'values',
        values: [50, 552, 4651, 4952, 5000, 7080, 9000],
        density: 4,
        stepped: true
    }
});