CFS Products - BetterBind Coil-It - Coil-Binding Machine with Electric Coil Inserter - Manual Binding Punch - Up to 20 - Pages 4:1 Pitch - for Personal, Home, School or Business Binding :
A4 Size Base Heavy Duty Coil Punching and Binding Machine (MC8702) - China Coil Binding Machine and Spiral Binding Machine
TechTongda 34Holes Punching Binding Machine All Steel Metal Spiral Coil Binder Puncher #026721 - Walmart.com
OFFNOVA Spiral Coil Binding Machine, Manual Book Round Hole Punch Book Binder with Electric Coil Inserter, Adjustable Side Margin, Including 100 x 5/16" Coils : Amazon.co.uk: Stationery & Office Supplies