Material: spring/carbon steel
Strength: 20kg/30kg/40kg/50kg/60kg
Spring length: 20cm/24cm/25cm/27cm/27.5cm
Color: Black

Note:
1.1cm=10mm=0.39inch
2.The size is manually measured, there will be an error of 1-3cm, please carefully compare the size when purchasing.
3.Due to the different display and different light, the picture may not show the actual color of the item.Thanks for your understanding.
4.24h friendly customer service and email support. If you have any problem, please contact our customer support and we will reply you within 24 hours
5.We support Dropshipping/Wholesale.