GBC TB500 Heavy Duty Thermal Binding Machine Capacity 500 A4 SheetsDesigned to meet the demands of medium to high volume usage, the GBC TB500 Thermal Binder is designed for medium to high volume usage, and delivers a polished 'perfect bound' finish to documents and presentations. The simple yet intuitive controls feature an auto cut off function when no document is loaded. With the capability to bind up to 500 x 70gsm A4 sheets at a time or multiple smaller ones simultaneously, this thermal binder ensures efficiency