Orca Or-12 !!top!! -

MDSS Premium ECG Thermal Paper 210mm x 20m | Compatible with 12 Channel ECG Machines | 10 Rolls

If your query is about "paper for a 12-channel" device (misidentified as OR-12), you likely need : Common Size : 210mm x 20m or 210mm x 30m rolls. orca or-12

The Orca OR-12 is a thoughtful, rugged, and highly practical tackle bag that solves the main problem of soft tackle storage—water intrusion—while remaining compact enough to actually carry. It's not cheap, but it will outlast three generic bags. Rating: 9/10 MDSS Premium ECG Thermal Paper 210mm x 20m

Here are some of the technical specifications of the Orca OR-12: orca or-12

20.4 x 11.4 x 10.2" (51.8 x 29.0 x 25.9 cm).