Binders
TIANSE Binding Machine, 21-Hole, 450 Sheet, Spiral Binding Machine with Starter Kit 100 PCS 3/8'' Comb Binding Spines, Comb Binding Machine Perfect for Daily Office Documents
[Easy to Use: Punch & Bind] Just Punch and Bind, two simple steps. Manually punches up to 15 sheets of paper at a time and binds up to 450 sheets with 2?? comb spines, allows you to create professional-looking bound books at home or in the office...
https://www.bizrate.co.uk/binders/tianse-binding-machine-21-hole-450-oid25897900069.html