Operation: works while you keepping holding the switch with your foot and release to turn off. Made of high quality ABS plastic and with slotted prevents slipping and more efficient operation. Compatible with for Machine Models: 4600, 4610, 4613, 4617, 4623, 4663, 5910, 6230, 6233, 6234, 6235, 6250, 6251, 6267, 6268, 7000, 7004, 7005, 7028, 7029, 7033, 7034, 7035, 7037, 7043, 7050, 7060, 9000, 9020, 9110, 9113, 9117, 9124, 9130, 9133, 9134, 9137, 9143, 9210, 9217, 9224, 9240, 9323, 9334, 9410, 9416, 9417, 9420, 9430, 9444 and other for Singer Air electric sewing machine Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:plastic Package Contents: 1 * Pedal Foot Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.