The Fed. Spec Thimble is available in sizes ranging from 3/16" to 1-1/4" to ensure a perfect fit for every project. This thimble can be used for 1 1/8" to 1 1/4". This thimble is made from grade 316 stainless steel for maximum corrosion resistance and durability. It is ideal for marine and industrial rigging and wire rope applications.