[APPLICATION]: Sometimes known as a Jesus clip, C-clip, or rotor clip, these snaps rings are fasteners or retaining rings that are a semi-flexible metal material, and open-ended to be snapped into place in a machined groove on a dowel pin as found in automotive axles and shafts to stop lateral movement and allow rotation. | [VERSATILE]: A versatile and shop handy set of snap rings for professionals and hobbyists alike with 18 different sizes of rings that are great for automotive work and more, and is effective when used with needle-nose pliers or flat-headed screwdrivers for leverage. | [DURABLE]: Each ring is made of durable, heat-treated, and hardened grade 60 carbon steel for flexible improved tensile strength that holds strong and lasts. | [CONVENIENCE]: 300 smaller-sized replacement clips for a wide variety of securing tasks around the shop or home and comes with a plastic storage case with identification compartments to neatly arrange and easily identify the proper ring providing for quick access. | [INCLUDES]: Sizes - 1/8", 5/32", 3/16", 1/4", 5/16", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 3/4", 13/16", 7/8", 1", 1-1/16", 1-1/8", 1-1/4" for a 300 count.