Size Avaliable:
5.5"x5.5", 10"x10" , 11"x13" ,7.25"x7.25" ,4.25"x13", 8"x13"
Compatible with Brand of Machine:
Tajima/Brother PR/ Happy/ SWF/Ricoma/Barudan/ZSK
Funcation:
Makes hooping very easy, help to reduces hoop burn, and stress on wrists and arms.