BLACKON MTB Mountain Bike Waterproof Crankshaft Cover Chainring Bolt Bottom Bracket Crank Crankset Nut Bicycle Crank Bike Crank Cover Screw Bike Crank Arm Fixing Bolt Crank Bolt Cover Bicycle Crankset Nut

Please make sure the size corresponds to your crank before buying）Material：aluminum alloy Packaging: 1PC Crane cover screw Color：rainbow/black/red/silver/purple/gold Weight：8g Specifications：M15/M18/M19/M20 Brand：hassns Model: M18 MTB crank cover screw; suitable for PROWHEEL / FS.A / FC-4500 / FC-5600 road bike cranks, as well as cranks with a screw diameter of 18mm. M19 MTB crank cover screw: suitable for hollow integrated cranks of IXF / LEBYCLE and other brands, as well as cranks with a screw diameter of 19mm. M20 MTB crank cover screw: suitable for M4000/M590/M596/M661/SLX/XT/XTR as well as cranks with a screw diameter of 20mm