Insulated ABS Material: Made of ABS plastic with a thickness of 0.15 inches (approximately 0.15 cm), which is not easy to crack or damage, this wrench tool holder has corrosion resistance, toughness and high hardness bearing capacity and will not crack or damage. Insulating material stores your metal wrench holder safely and prevents electrical interference. Compact design: 7.36x12.52x1.2inch (LxWxH), 4-pack. Suitable slot angle allows you to easily store 64 wrenches, suitable for mounting SAE and metric wrenches. This wrench storage rack is suitable for Fits most tool chests, drawers and tool carts into your workshop or garage and maximizes storage space in your tool area. MULTIPLE APPLICATIONS: Wrench clamp fits SAE sizes 1/4inch to 1inch and metric sizes 8mm to 22mm. SAE: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1-in. Metric: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm. No complicated installation process required. The stylish colors can decorate your garage or workshop area while bringing you convenience. Plus, they 't shed paint and 't fade with long-term use. Suspension and installation design: Screws are included in the package. Install the wrench organizer with screws and hang it on the metal surface through hooks or magnets to store wrenches stably and safely. Colour:Red & Black Material:ABS Package Contents: 1set * big tool box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.