1, MCA18K-38 2, computer control 3, auto cut & re-insert elastic 4, underwear & swimsuit ... standby.3, It’s convenient to install on all kind of sewing machine. Widely used in garment, such as swimsuit, bikini, underwear ... , Sewing machine type: Z for zig-zag, K for overlock, and C for coverstitch3, Feed width (max): 38 for 38mm, 64 for 64mm4, Adaptable sewing machine brand ...