1. The five-tooth blade is made of high-strength and high-toughness 65MN steel2. The five-tooth blade is heat treated after opening, and the hardness is higher3. ABS protective cover, high toughness and more durable4. Five-tooth blade: diameter 13 cm, inner diameter 2.54 cm, thickness 1.5 mm5. Protective cover: 14.4 cm, thickness 4 mmInstallation notes:1. Disassemble the working head and install the protective cover2. Put down the pressure plate first, then put the blade, and then insert the inner hexagon3. Put on the pressure plate dust cover, and then tighten the anti-thread nut with a wrenchThe package contains:1. Five-tooth blade x 12. Two-tooth blade x 13. Protective cover x 1

http://olla.gr/multi-function-lawn-mower-weeding-tray-paddy-field-dry-land-weeding-head-accessories/