The Maserin 165 In-Estro 165 is a light-weight slip joint knife, designed by Alessandro “Bonus” Olivetto. This is your everyday carry The aluminium scales,were enhanced with stunning micarta inlays to complete the whole knife. The blade is made from D2 steel. This is a tough type of tool steel that retains its sharpness well.  The Maserin In-Estro you open with two hands. When opened the blade is held open by a slip joint. The advantage is that, because of this slip joint, you can legally carry the In-Estro in the UK.