This 8 piece kit comprises a self healing cutting mat (A6), a No.1 knife handle and 6 assorted blades. The mat (145mm x 105mm) has a printed grid with lines every 10mm to help when aligning your workpiece. There are also 45° and 60° lines to help when cutting angles. The handle features a soft comfortable grip. The collet mechanism tightens with a thread inside the handle and securely holds the blade in place. We particularly like the small magnet at the top of the handle, which allows you to pick a blade out of the box safely and with ease. The box contains six assorted blades to get you started.