Suitable for different kinds of watch bands:--The kit includes 1 long silver needle metal band + 7 long needles, 1 set of blue scale + 1 spare fork, 6 copper needle heads, a 1 meter adjustment rod, 1 piece of 2.5mm hole punch, 1 piece of small blue hammer, 1 piece of blue rice-shaped seat, 10 pieces of legs and 10 pieces of hairpins (16 , 18, 20, 22, 24), 1 piece of light blue surface fabric. With different diameters and lengths, enough to meet your different needs. High Quality Material:--The spring bar is made of high quality hard and durable stainless steel, which is waterproof, tough to rust or corrode, and has a long service life. Spring rod tool function:-- This is a set of tools specially used to replace the bracelet watch and replace the spring rod. You can use it to match your watch to another strap or to replace a broken spring bar. It can be used to replace mechanical watch straps, quartz watches, electronic watches, belt watches, etc. [Using the spring tool] - The small hand of the the spring tool is detachable and replaceable and is used for metal watch bands; the large needle is used for leather watch straps, and the needle tips at both ends are covered with silicone caps.