Made of durable heat-treated, hardened steel with improved tensile strength; holds strong and lasts Includes 120 smaller-sized replacement e-clips for a wide variety of securing tasks around the shop or home Set includes plastic storage case to keep clips neatly arranged and organized E-clips are ready when you are so you can stop running to the hardware store every time you need to replace a fastener Outer Diameter:3.5-20(mm) ;Nominal Diameter:1.5-10(mm), Weight: 0.1763698096 Pounds, Manufacturer: DollaTek