Features:
Made of high quality metal
Easy to install and durable
A package of five colors, feel free to change the color you like
Preferred by Knowledgable Model Hobbists & R/C Enthusiasts

Specifications:
Material: Metal
Quantity: 5Set/20Pcs
Length: 60mm
Outer Diameter: 15mm
Inner Diameter: 13mm
Color: White, Red, Blue, Black , Yellow
Spring Thickness: Black (0.9mm) White (1.0mm) Blue (1.1mm) Yellow (1.1mm) Red (1.2mm)