Vaper 32098 1/2 inch Drive Metric Magnetic Aluminum Socket Rail features a 1/2 inch drive metric magnetic anodized socket holder. It holds 14 sockets and universal joints. It accepts standard and deep sockets. There are sizes marked on rails for easy identification. The sizes include: 10-22 millimeter and U-joint anodized aluminum rail construction. It has a super strong magnet for solid placement.