Size: 100mm (1.2*12*100)

•  wire diameter:1.2mm
• diameter:12mm
• spring length:77mm
• weight:21g

Size: 200mm (1.2*15*200)

• wire diameter:1.2mm
• diameter:15mm
• spring length:170mm
• weight:56g

Size: 300mm (1.5*16*300)

1. wire diameter:1.5mm
2. diameter:16mm
3. spring length:275mm
4.  weight:105g

Size: 500mm (1.2*12*500)

• wire diameter:1.2mm
• diameter:12mm
• spring length:478mm
•  weight:122g