GBC WireBind W20 Binding Machine, 20 Sheet Punch Capacity, 125 Sheet Binding Capacity, A4 and A5, BlacIdeal for frequent office use, the sturdy and practical WireBind W20 is designed to make manual binding easier. With document separating and auto centring as standard features, the WireBind W20 can punch up to 20 x 80gsm sheets at once and up to 125 sheets using a 14 mm wire. Binds both A4 and A5 documents. Warranty Guarantee : 2 Year