DescriptionThis is a set of trumpetwater gate key springs with excellent quality, made of iron, high-quality and durable. The water gate key for trumpetis easy to install, will not hurt your trumpet, and is not easy to damage.Features-Color: Silver -Material: Iron -Size: About1.80X1.50X0.80cm/0.71X0.59X0.31inch -Size: About2.20X1.30X1.00cm/0.86X0.51X0.39inch -Size: About2.20X1.60X0.60cm/0.86X0.63X0.24inch -Made of high-quality iron material, sturdy, and durable. -Professional tools for trumpet/ French horn/tuba lovers. -Easy to install and replace, they are perfect replacements for the old or broken one. -Watergate key springs of wind instruments,small size and portable. -Suitable for most trumpets on the market.