The Ernst 8300 provides a secure and durable socket fit that also allows for easy, smooth socket engagement and removal. Additional socket clips and other add-ons (sold separately) snap on both sides for maximum socket storage. Whether in the toolbox, on the wall, or on the go, this socket organizer is ideal for organizing socket sets of any size. Features: * Comes with an SAE and MM I.D. labeling system with 96 fractional and metric Socket I.D. stickers for easy socket identification * 1/4 inch width, 18 inch length * Twin serrated edges for maximum socket storage and accessory mounting * Slotted hang hole allows vertical hanging for convenient storage * Rounded head for easy socket engagement, smooth spring action for consistent feel and durable, long life socket grip * Patents US 6,092,655 US 6,637,605, US 6,092,656, US D433,160 What"s In The Box: * Ernst 8300 18 Inch Socket Rail with 15 Dura-Clip 1/4 Inch Socket Clips * (96) Socket I.D. stickers *Blue version is for illustrative purposes only