This is a foot controller compatible with Brother sewing machines, MODEL P. Although not a genuine product, the speed adjustment mechanism has been improved, and the stepping is very smooth. Compared to the genuine product, it is easier to make fine adjustments to the speed. Compatible products: ZZ3-B800～980 series, ELU49～58 series, EM100 series, EM210 series, EM900 series, EMS09～17・80 series, EMU15～19 series, EMV40～43・81～85 series, CPE00～10 series, CPS01～05・40～48・50～58・70～79 series, CPU63 series, CPV01～05・21・22・70～76 series, CP900 series, EML04 series, CPF20・30・43・73 series