Black on White, DYMO-LW Fixed Length Series: Three proof Label with Patent Structure, 59mm Width and 102mm Length (300 pcs/roll Shipping Labels), Compatible with DYMO 30256.

Can be used with:

LabelWriter 320/LabelWriter 330/LabelWriter 330Turbo/LabelWriter 400/LabelWriter 400Turbo /LabelWriter 400 Twin Turbo/LabelWriter 450/LabelWriter 450TuRBo/LabelWriter 450Duo/LabelWriter 450 TwinTuRLo/LabelWriter SE450/LabelWriterWireless