Sewing Machine Magnetic Gauge Model: MG1 Enables stiching perfectly even seams along stright edges can be used on any machines left or right of presser foot Just put the #MH1 Magna-Hold where you want it, and the powerful magnet holds it there--it will not vibrate loose! Stick extra bobbins, needles, etc. to Magna-Hold and never have to hunt for them again. Magnetic Seam Guide #SMG grips securely to any machine, can be moved and positioned instantly for any desired seam width, and is ideal for stay stitching. Magnetic Seam Guide #MG1 has a large one-piece, double-size magnet for super holding power. Specially designed handle with "no-slip" grip permits easy lifting and re-positioning when desired. Magnetizer/Demagnitizer #M360 is ideal for use on screwdrivers, nut runners, wrenches, taps, and other small metal tools. COnvert any tool blade into a magnetic retriever for screws, nuts, and ferrous metal particles.