1. TOTAL SIZE (APPROX.) -- 85mm, Big diameter=1.5mm, small=7.3mm, for FRT18A FRT18A1 Art. 46155 FRT20A1 Edger. (The Compatibility Is For Reference Only. Please Compare The Hole Size With The Original One Before Purchasing ) 2. QUANTITY -- 100 Pack Replacement Blades, Enough To Use, For Florabest Trimmer, perfect replacement for the original blades. 3. MATERIAL -- The replacement blade is made of high quality ABS plastic, very sturdy and solid, no need to worry about rust. 4. GOOD PERFORMANCE -- The blade has good stability, safety and reliability. Can reach all the weeds around the trees without knocking down or hurting the trees. 5. EASY TO INSTALL -- These cutting knives are easy to install and use. This makes it easy to cut and trim your garden plants. Features: 1. Plastic cutter blade, high quality, durable. 2. Good workmanship, it is a perfect substitute for trimmers and lawn mower blades. 3. The lawn mower's plastic blade helps clear out all the unnecessary clutter, making your own yard cleaner and more beautiful. 4. Suitable for ordinary lawn mowers, easy to install and disassemble. High quality, durable ABS plastic scraper, used for high quality, durable, good workmanship, strong and sharp, is a perfect substitute for grass trimmers and lawn mower blades. Flexible and sturdy Replace the plastic blades used for cordless lawn mowers, suitable for ordinary lawn mowers, easy to install and remove. The lawnmower's plastic blades help clear up all the unwanted clutter and make your own yard cleaner and more beautiful. Each set of 100 pieces is enough for you to use. Plastic Blades Product Information (Compatibility is for reference only) Product size? Length: 84mm Big hole size: about 5mm Small hole size: about 10mm Specification Name: lawn trimmer blade Category: Brand new Material: ABS Color: red Compatible:FRT18A FRT18A1 46155 FRT20A1 Size: about 8 .5 x 2 cm / 3.3 x 0.8 inch, PACKAGE INCLUDING: 100 x plastic blade grass trimmer becomevery rich