78 colors including 2 white and 2 black spools, compatible with Janome and Robison-Anton color systems. Each spool is 40 weight, 500 meters (550 yards) length, suitable for all embroidery projects. Made of polyester with good tensile strength, reducing risks of breaking, fraying, looping and puckering. Excellent color fastness holds up through commercial laundering, bleaching and harsh chemicals. Ideal for workwear and linens. This kit does not include wood rack.