Features: A professional repair tool, the maintenance tool is used to close the perfect press of the rebound box, often used to repair or replace the mainspring. Easy to operate, made of durable high-quality materials, environmentally friendly, ergonomically designed, and long-lasting. When you need to repair your watch, the bellows closure tool can help you a lot. Wide range of uses, the tool to close the mainspring barrel is moderate in size, mainly used for watch repair, clockwork tool, watch repair tool, watch repair, seal box tool is a good helper for watchmakers. Small size, easy to carry, easy to operate and store, light in weight, save time and effort, will not increase your workload, good performance, can bring you a lot of convenience. Safe to use, durable and not easily deformed. The safety factor is high, even if you use the tool many times, closing the barrel tool will not affect your work. Specification: Material: plastic Size: 0.94*0.75in/2.4*1.9cm Color: black, white Package Includes: 1pc Notes: Please allow minor errors due to manual measurement. The colors may be a little difference for the different monitor display.