Abus Ultra 410K U Lock Key 12mm 170x230mm 6.7x9 Color:Black Loma earned the highest 5 Star Loma earned the highest 5 Star Virginia Tech® Helmet Rating™ from internationally renowned Virginia Polytechnic Institute and State University You can also rub the block directly onto the ski base and then polish with the wool roller 12mm round shackle Hardened lock body Double bolt locking SH 34 Bracket (for 24 35mm tubes) Sold Secure Silver approval Improved design reduces potential for rattling Bracket SH34 Internal Lock Size Metric 170x230mm Lock Type Key Primary Color Black Thickness In mm 12mm Internal Lock Size Imperial 6