Features: Trumpet Accessories: Great for trumpet repair parts. Mounting Springs for Trumpet: Made of high grade stainless steel material, durable in use. Trumpet Hardware: Equipment accessories include: brass instrument, keyboard instrument, stringed instrument, woodwind instrument. Woodwind Instrument Spring: Water drain springs of wind instrument, small size, portable. Practical, economical product. Guitar Pickup Spring: Exquisite craftsmanship, easy to replace, perfect replacement parts for trombone/ trumpet/ tuba lovers. Specifications: Material: Stainless Steel Color: As The Picture Shows Package Weight: approx.11g Size: approx.2.52x1.22x0.9cm/0.99x0.48x0.35in (More Size Detail, Please See Photo.) Note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks! Package includes: 20Pcs x Trumpet Water Gate Key Springs