Hartwii White on Black Cassette Compatible for Brother TZ-315 TZe-315 Label Tape 6mm x 8m (1/4 x26") Suitable for Brother P-touch Serial Label Printing Machine Model number:TZ-315 /TZe-315 Color: White On Black Size: 6mm x 8m / 1/4 x 26" Other Colors: more than 20 colors to be chosen