Apollo looper belongs to the group of horizontal loopers and does not require a capalone for the bobbin with low thread tension. For machines with the special Apollo looper from SINGER, the Prym range offers a box with four suitable sewing machine bobbins made of transparent plastic. The great advantage of plastic bobbins is that one always has the color of the thread and the reserve of thread under the eyes and thus can prevent a sudden cutting of the bobbin thread. However, when choosing the bobbin, the material of the looper should always be taken into account in order to avoid premature wear of the bobbin or buckler.