Specifications: For the knife Materials: carbon steel, ABS and Aluminum Color black Cut grafting stocks from 5mm up to 1.4cm diameter Trimming blades 3mm thick Phillips screwdriver with red handle Size 27cm * 10cm/10.5inch * 3.9inch (1cm=0.39Inches) A wrench 2 additional blades How to use: Step 1: Hold the grafting stock in the grafting tool and squeeze the handle to make the cut, repeat this step to cut stem from the donor plant. Take care to ensure that the groove is cut in the stock plant. Step 2: Slide the donor stem into the groove of the stock plant, matching the cut surfaces as closely as possible. If the stock and donor plant are not the same size, match on the side only. Step 3: Place sterilizing material around the joint, and bind with tape, the sterilizing material will protect against bacteria and weather conditions. Step 4: Use the pruner to cut useless branches from the plant. Note: Keep out of reach of children do not use on dry or old hard wood