Seiko Instruments SLP-2RL Address Labels — 28 x 89 mm, 2 Rolls x 130
Direct thermal28 x 89 mm2 rolls x 130 labelsSII Smart Label Printers
Seiko Instruments SLP-2RL (article 42100607) is a box of 2 rolls of address labels, 28 x 89 mm, 130 labels per roll (260 labels in total), for SII Smart Label Printers.
It is the standard address label for SII Smart Label Printers — for offices, mailrooms and small businesses printing envelopes, parcels and file labels one at a time straight from the PC. The labels are top-coated direct-thermal paper with a permanent standard adhesive, so the printer needs no ink, toner or ribbon — heat from the print head creates the image.
Choosing the right SII roll comes down to the label type your job needs — address, name badge, round marker or shipping — and the printer model you own. Each roll is a fixed size the printer driver knows by its code, so selecting SLP-2RL in the software is all it takes to print on it correctly.
Before you order: these rolls fit SII Smart Label Printers only. SII Smart Label Printer models listed by Seiko Instruments: SLP 720RT, 650, 650SE, 620, 420, 410, 240, 200, 220, 120 and 100. They do not fit Dymo, Brother or Zebra label printers.
What's in the Box
- 2 rolls of SLP-2RL address labels in one retail box
- 130 labels per roll, 260 labels in total
- Label size 28 x 89 mm (1-1/8 x 3-1/2 in), white
- No ink, ribbon or printer included — labels only
What It Means in Practice
- Print one address at a time, exactly when you need it — no half-used A4 label sheets.
- Direct thermal means the only consumable is the label roll itself: no cartridges to replace, no ribbon to thread.
- Load the roll, select the SLP-2RL label type in the SII Smart Label software or your print driver, and the layout matches the label.
- At 28 x 89 mm the label takes a four-line address in a readable size; it also works for file folders, binders and storage boxes.
- Direct-thermal prints are sensitive to heat and strong sunlight over time; for items that must stay legible for years, store them away from heat sources and direct sun.
- Keep spare rolls in their box, away from heat and humidity, so the thermal coating and adhesive stay in good condition until you load them.
What Will Not Work
- Dymo LabelWriter, Brother QL, Zebra and other label printers: SII rolls are made for SII Smart Label Printers.
- Inkjet or laser printers: these are thermal label rolls, not A4 sheets.
- Removal without residue: the adhesive is permanent standard adhesive.
- Large shipping labels: for parcel labels with barcodes you need a larger shipping label roll.
Key Features
No ink, no ribbon
Direct thermal printing on top-coated paper — the roll is the only consumable, which keeps running costs and maintenance low.
Sized for the job
The 28 x 89 mm address format takes a standard four-line address in a clear, readable size.
Permanent adhesive
Standard permanent adhesive on quality paper that stays on envelopes, packages, folders and containers.
Made for SII printers
Rolls are produced by Seiko Instruments for its Smart Label Printer range, so they load and feed as the printer expects.
Technical Specifications
| Identification |
| Brand |
Seiko Instruments (SII) |
| Part Number |
42100607 |
| Model |
SLP-2RL |
| Label type |
Address Labels |
| Label |
| Size |
28 x 89 mm (1-1/8 x 3-1/2 in) |
| Shape |
Rectangular, rounded corners |
| Colour |
White |
| Labels per roll |
130 |
| Rolls per box |
2 |
| Labels per box |
260 |
| Material |
| Paper |
Top-coated |
| Print method |
Direct thermal |
| Adhesive |
Permanent standard adhesive |
| Compatibility |
| Printers |
SII Smart Label Printer SLP 720RT, 650, 650SE, 620, 420, 410, 240, 200, 220, 120 and 100 |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
No separate manufacturer warranty term published for this consumable — faulty or defective rolls are handled through Singular |
Frequently Asked Questions
Do I need ink or a ribbon?
No. SLP-2RL is direct-thermal paper: the Smart Label Printer prints with heat, so the label roll is the only consumable.
Will this roll fit my label printer?
It fits the SII Smart Label Printer models Seiko Instruments lists: SLP 720RT, 650, 650SE, 620, 420, 410, 240, 200, 220, 120 and 100. It will not fit Dymo, Brother or Zebra printers.
How many labels do I get?
Two rolls of 130 labels — 260 address labels per box.
Can I remove the labels later?
They use a permanent standard adhesive, so expect paper tear or residue if you peel them off.
Singular Expert Insight · Buyer's Guide
The 2RL is the everyday roll for SII Smart Label Printers: if you print addresses, file labels or box labels one at a time, this is the label you will reorder most. Direct thermal keeps it simple — no ink to dry out between jobs. It is permanent, so for labels that must come off cleanly look at a removable version instead.
Browse our labels range for A4 sheet labels if you print from a laser or inkjet printer instead.
✓ Buy it if you own an SII Smart Label Printer and print addresses or file labels on demand.
✕ Skip it if your label printer is a Dymo, Brother or Zebra model — these rolls will not fit.
→ Also consider Seiko Instruments SLP-RND round Ø 28 mm labels (42100663) for seals and markers on the same printers.
Not sure which roll your printer takes? Tell us the exact SII Smart Label Printer model and we will check compatibility before you order.