The 30 x 15 in. Aluminum Triangle® Toolbox allows you to organize more than 141 tools and see them all at a glance with the multi-tier design, When closed, the trademarked lid design locks tools in position, creating protection, security and organization, 16-gauge steel construction ensures strength, durability and protection, Designed to carry either SAE or Metric tools, Weather resistant seal on lid protects tools against dust and moisture.