Boom Racing #BR271005B Aluminum Front / Rear Lower Arm - 1 Pair Blue for Traxxas Slash 4X4 Lightweight upgrade instantly enhances overall performance in handling and durability. Fits perfectly. Length: 99mm width: 45mm thickness: 7. 2mm included screws and other staffs for mounting. Color: blue. Takes 7 to 15 business days by standard airmail shipping. 80% of packages arrive within 10 business days. Most packages ship within 12 hours. Please allow 1 extra day if order is placed during the weekend. Expediated shipping is shipped by dhl or fedex. Arrives in about than 2-5 days. Major cities will receive orders earlier.