The Tamerica 190PB Manual Comb Binding machine features Tamerica's famous all-metal construction in a simple, easy to use manual comb binding machine perfect for home offices or schools. The Tamerica 190 PB easily punches 20 sheets of 20lb paper at one time, with a rate of 5,000 sheets an hour, and can bind documents up to 2" thick. The 190pb stands out from competitor binding machines by offering a 2 year manufacturer warranty. Whether you need the Tamerica 190 pb for home, school, or office use, this manual comb binding machine is capable of handling any job. Be sure to check it out today.