Now buy Precihole O- Ring for Precihole Air Rifles 

Cherokee 35 Model Main Spring is multi-processed for long operational life, ground and polished ends, proprietary tempering process using the highest material grade.
During final tempering they are coated with a specially formulated hard but fexible finish. This is a high tech derivative of PTFE and Teflon and its self-lubricating multislip properties eliminates the need for conventional spring lubrication.
Maximum power is maintained for longer than most other springs.

•  High Quality Air Rifle Spring for Optimum Accuracy & Power
•  Made in India from Finest Steel
•  Striking Power Pre-Tested at Full Compression for High Impact & Elasticity
•  Best fit for National, SDB, GI, UTA, Classic & other Standard Air Rifles
• 37 Coils approx

Precihole VX100 Spring