The falcon eyes professional background system spk-1a is an extra sturdy background system specifically suitable for wide background rolls of 2.75m. despite this, background rolls of 1.35m can also be used in conjunction with this system. the stands have an extra large spread, are made of thicker tubes and are longer than the standard background system stands. this set comes with 2 stands, 2 roll holders, 2 brackets for hanging the roll holders and a chain with weight allowing you to roll the roll off and on. the stands contain extra pre-drilled holes in order for you to hang 2 more rolls. in order to do this, 2 sets of cbh-5 brackets and 2 sets of b-reel roll holders are needed and can be found in the ‘optional accessories’ tab below. two roll holders are supplied. on the roll holder without chain you will find a rotary knob that allows you to adjust how light or heavy the paper rolls off. the last picture shows the dial.