Features: 1. Label Machine Tape, This Thermal Label Tape Is Especially Suitable For B21/B3s Printers. 2. There Is 2 Roll Of White Label Paper, The Size Is 50x30mm, And There Are 230 Printer Labels Per Roll. 3. Thermal Transfer Printing, Using Thermal Transfer Printing Technology, Can Print Without Ink Or Ink Cartridges. And Strong Adhesion. The Printing Is Clear, Non-Fading, Waterproof, Oil-Proof, Tear-, Non-, Harmless And Degradable. 4. Widely Used, This Printer Label Is Widely Used In For Home Classification, Office Organization, Business Display, Etc. It'S Clear And Compact Enough To Be A Helpful Assistant In Your . 5. Note That The Sticker On The Side Of The Roll Contains A Printed Sensor Chip. Please Do Not Tear Or Damage The Sticker, Otherwise It Affect The Printing Effect. Description: Technology: Thermal Technology Function: Waterproof And Wear- Scope Of Application: Thermal Printing Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Material: PVC colour: White Package Contents: 2 Roll Thermal Printing Paper Label Paper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.