GEARWRENCH mechanics tools have been designed with professional users in mind for better productivity, access, and strength. GWMSBSKCBMM is one of the wide collection of Modular Sets we offer that feature premium quality tools organized in sturdy foam storage trays. These chemical and solvent resistant trays are designed to fit in a wide range of tool storage systems, including our GSX storage line of products. Foams are in contrasting orange and black with high visibility size markings for easy tool identification. Each of the fine tools nests in a custom cutout that provides optimal protection, organization, and accessibility.