QEP 10-208 ROLL-O" Universal Knife Large patented roller glides over rough materials such as roofing shingles, carpet, sheet goods, linoleum and more Big grip handle - extended tail protects knuckles and provides firm grip. Steel reinforcements in nose and tail wear areas Push button opening - quick and easy blade changing and storage access Blade Storage holds 10 extra blades (not included). Uses standard 2 or 3 notch utility and hook blades Member tested and recommended by the Handyman Club of America